"April, 1983."Distributed to depository libraries in microfiche.Cover title.Mode of access: Internet
"June 1987"-- T.p. verso.Distributed to depository libraries in microfiche.Cover title.Mode of acces...
"January 1987."Distributed to depository libraries in microfiche.Cover title.Mode of access: Interne...
Chiefly tables."May 1986."Distributed to depository libraries in microfiche.Cover title.Mode of acce...
Chiefly tables."February 1990"--P. [2] of cover.Distributed to depository libraries in microfiche.Co...
Chiefly tables."June 1990"--P. [2] of cover.Distributed to depository libraries in microfiche.Cover ...
Chiefly tables."February 1990"--P. [2] of cover.Distributed to depository libraries in microfiche.Co...
Chiefly tables."August 1990"--P. [2] cover.Distributed to depository libraries in microfiche.Cover t...
"February 1987."Distributed to depository libraries in microfiche.Cover title.Mode of access: Intern...
"October 1990"--P. [2] of cover.Distributed to depository libraries in microfiche.Cover title.Mode o...
"June 1987"--P. [2] of cover.Distributed to depository libraries in microfiche.Cover title.Mode of a...
"November, 1984."Distributed to depository libraries in microfiche.Bibliography: p. 37.Mode of acces...
"May 1987"--P. [2] of cover.Distributed to depository libraries in microfiche.Cover title.Mode of ac...
"April 1983"--P. [2] of cover.Distributed to depository libraries in microfiche.Mode of access: Inte...
"April 1983"--P. [2] of cover.Distributed to depository libraries in microfiche.Mode of access: Inte...
"June 1987"--P. [2] of cover.Distributed to depository libraries in microfiche.Cover title.Mode of a...
"June 1987"-- T.p. verso.Distributed to depository libraries in microfiche.Cover title.Mode of acces...
"January 1987."Distributed to depository libraries in microfiche.Cover title.Mode of access: Interne...
Chiefly tables."May 1986."Distributed to depository libraries in microfiche.Cover title.Mode of acce...
Chiefly tables."February 1990"--P. [2] of cover.Distributed to depository libraries in microfiche.Co...
Chiefly tables."June 1990"--P. [2] of cover.Distributed to depository libraries in microfiche.Cover ...
Chiefly tables."February 1990"--P. [2] of cover.Distributed to depository libraries in microfiche.Co...
Chiefly tables."August 1990"--P. [2] cover.Distributed to depository libraries in microfiche.Cover t...
"February 1987."Distributed to depository libraries in microfiche.Cover title.Mode of access: Intern...
"October 1990"--P. [2] of cover.Distributed to depository libraries in microfiche.Cover title.Mode o...
"June 1987"--P. [2] of cover.Distributed to depository libraries in microfiche.Cover title.Mode of a...
"November, 1984."Distributed to depository libraries in microfiche.Bibliography: p. 37.Mode of acces...
"May 1987"--P. [2] of cover.Distributed to depository libraries in microfiche.Cover title.Mode of ac...
"April 1983"--P. [2] of cover.Distributed to depository libraries in microfiche.Mode of access: Inte...
"April 1983"--P. [2] of cover.Distributed to depository libraries in microfiche.Mode of access: Inte...
"June 1987"--P. [2] of cover.Distributed to depository libraries in microfiche.Cover title.Mode of a...
"June 1987"-- T.p. verso.Distributed to depository libraries in microfiche.Cover title.Mode of acces...
"January 1987."Distributed to depository libraries in microfiche.Cover title.Mode of access: Interne...
Chiefly tables."May 1986."Distributed to depository libraries in microfiche.Cover title.Mode of acce...