Description based on: Vol. 9, no. 4 (Jan. 1979); title from caption.Mode of access: Internet
Description based on: Vol. 2, no. 1 (Nov. 1970); caption title.Mode of access: Internet
Mode of access: Internet.Description based on: Vol. 119, pt. 4, 1975/76; title from cover
"A condensation prepared by The Great Lakes Commission."Cover title.Mode of access: Internet
Description based on: Vol. 2, no. 3 (Jan.-Feb. 1979); title from caption.Mode of access: Internet
Description based on: Vol. 3, no. 1 (Sept. 1975).Caption title.Mode of access: Internet
"June 1978."Cover title.Includes bibliographical references (pages 44-48).Mode of access: Internet
Title from caption.Description based on: Vol. 7, no. 9 (Nov. 1986).Mode of access: Internet
Issued July 1977.Cover title.Includes bibliographical references (pages 68-69).Mode of access: Inter...
Title from caption.Jan. issue is an annual summary of the previous year.Mode of access: Internet
"U.S. Department of Agriculture Task Force Report"--p. 1.Caption title.Mode of access: Internet
"October 1978."Cover title.Includes bibliographical references (pages 113-115).Mode of access: Inter...
For later file, see: Lake Survey Center. Great Lakes pilot.Title varies: 1954-70, Great Lakes pilot....
Description based on: Vol. 4, no. 1 (Jan. 1, 1909); title from caption.Mode of access: Internet
Description based on: Vol. 44, no. 8 (Sept. 1962) issue ; title from masthead.Mode of access: Intern...
Published also as the author's thesis, University of Chicago, under the title Transportation on the ...
Description based on: Vol. 2, no. 1 (Nov. 1970); caption title.Mode of access: Internet
Mode of access: Internet.Description based on: Vol. 119, pt. 4, 1975/76; title from cover
"A condensation prepared by The Great Lakes Commission."Cover title.Mode of access: Internet
Description based on: Vol. 2, no. 3 (Jan.-Feb. 1979); title from caption.Mode of access: Internet
Description based on: Vol. 3, no. 1 (Sept. 1975).Caption title.Mode of access: Internet
"June 1978."Cover title.Includes bibliographical references (pages 44-48).Mode of access: Internet
Title from caption.Description based on: Vol. 7, no. 9 (Nov. 1986).Mode of access: Internet
Issued July 1977.Cover title.Includes bibliographical references (pages 68-69).Mode of access: Inter...
Title from caption.Jan. issue is an annual summary of the previous year.Mode of access: Internet
"U.S. Department of Agriculture Task Force Report"--p. 1.Caption title.Mode of access: Internet
"October 1978."Cover title.Includes bibliographical references (pages 113-115).Mode of access: Inter...
For later file, see: Lake Survey Center. Great Lakes pilot.Title varies: 1954-70, Great Lakes pilot....
Description based on: Vol. 4, no. 1 (Jan. 1, 1909); title from caption.Mode of access: Internet
Description based on: Vol. 44, no. 8 (Sept. 1962) issue ; title from masthead.Mode of access: Intern...
Published also as the author's thesis, University of Chicago, under the title Transportation on the ...
Description based on: Vol. 2, no. 1 (Nov. 1970); caption title.Mode of access: Internet
Mode of access: Internet.Description based on: Vol. 119, pt. 4, 1975/76; title from cover
"A condensation prepared by The Great Lakes Commission."Cover title.Mode of access: Internet