"B-164497(1)."Publication date stamped on cover.Cover title.Mode of access: Internet
Cover title."B-230526.8"--P. 1."June 1989."Bibliography: p. 26-27.Mode of access: Internet
"B-115398.""PAD-76-64."Publication date stamped on cover.Cover title.Mode of access: Internet
Publication date stamped on cover."B-169491."Cover title.Mode of access: Internet
Publication date stamped on t.p."LCD-76-445."Cover title.Mode of access: Internet
Cover title.Publication date stamped on cover."B-182956.""PSAD-77-54."Mode of access: Internet
Publication date stamped on cover."B-115369."Cover title.Mode of access: Internet
Publication date stamped on cover."B-164497(3).""CED-76-156."Cover title.Mode of access: Internet
Publication date stamped on cover."B-115369.""LCD-75-111."Cover title.Mode of access: Internet
Date of publication stamped on t.p."B-179166."Cover title.Mode of access: Internet
Publication date stamped on cover."B-164497 (1)."Cover title.Mode of access: Internet
Publication date stamped on cover."B-153449."Cover title.Mode of access: Internet
Publication date stamped on cover."B-187797."Cover title.Mode of access: Internet
Publication date stamped on cover."B-114868.""RED-75-371."Cover title.Mode of access: Internet
"B-162578.""PSAD-76-148."Publication date stamped on cover.Cover title.Mode of access: Internet
Publication date stamped on cover."LCD-76-407."Cover title.Mode of access: Internet
Cover title."B-230526.8"--P. 1."June 1989."Bibliography: p. 26-27.Mode of access: Internet
"B-115398.""PAD-76-64."Publication date stamped on cover.Cover title.Mode of access: Internet
Publication date stamped on cover."B-169491."Cover title.Mode of access: Internet
Publication date stamped on t.p."LCD-76-445."Cover title.Mode of access: Internet
Cover title.Publication date stamped on cover."B-182956.""PSAD-77-54."Mode of access: Internet
Publication date stamped on cover."B-115369."Cover title.Mode of access: Internet
Publication date stamped on cover."B-164497(3).""CED-76-156."Cover title.Mode of access: Internet
Publication date stamped on cover."B-115369.""LCD-75-111."Cover title.Mode of access: Internet
Date of publication stamped on t.p."B-179166."Cover title.Mode of access: Internet
Publication date stamped on cover."B-164497 (1)."Cover title.Mode of access: Internet
Publication date stamped on cover."B-153449."Cover title.Mode of access: Internet
Publication date stamped on cover."B-187797."Cover title.Mode of access: Internet
Publication date stamped on cover."B-114868.""RED-75-371."Cover title.Mode of access: Internet
"B-162578.""PSAD-76-148."Publication date stamped on cover.Cover title.Mode of access: Internet
Publication date stamped on cover."LCD-76-407."Cover title.Mode of access: Internet
Cover title."B-230526.8"--P. 1."June 1989."Bibliography: p. 26-27.Mode of access: Internet
"B-115398.""PAD-76-64."Publication date stamped on cover.Cover title.Mode of access: Internet
Publication date stamped on cover."B-169491."Cover title.Mode of access: Internet