"NSF 80-93"--P. [4] of cover.Oct. 1980.Includes bibliographical references.Mode of access: Internet
"Issued September 1983"--P. [1]Cover title.Bibliography: p. 62-63.Mode of access: Internet
"NSB 00-22""February 2, 2000"Includes bibliographical references.Mode of access: Internet
Description based on: NSF 80-303 (Feb. 20, 1980); title from caption.Mode of access: Internet
"October 1979"--Cover.Includes bibliographical references.Mode of access: Internet
Cover title."OMB no. 3145-0058.""NSF 85-26"--P. [4] of cover."12/31/85."Mode of access: Internet
"September 1991"--P. [2] of cover.Cover title.Includes bibliographical references (p. 7).Mode of acc...
"April 1979"--Cover."Office of Space Science, Washington, D.C."Mode of access: Internet
"September 1981"--P. [2] of cover.Cover title.Bibliography: p. 38.Mode of access: Internet
"FWS/OBS ; 78/75"Aug. 1978."Biological Services Program."Includes bibliographies.Mode of access: Int...
"August 2000"--P. [2] of cover.Cover title.Includes bibliographical references (p. 42-43).Mode of ac...
"April 2003"--Cover.Includes bibliographical references (p. 77-85).Mode of access: Internet
Later edition published under title: General biology; 1952 edition published under title: The scienc...
Includes index."Report prepared for the National Science Board, National Science Foundation."Bibliog...
"July 1966"--AcknowledgmentsIncludes bibliographical references (p. 130-139)Mode of access: Internet
"NSF 84-301"--p. [4] of cover.Includes bibliographical references.Mode of access: Internet
"Issued September 1983"--P. [1]Cover title.Bibliography: p. 62-63.Mode of access: Internet
"NSB 00-22""February 2, 2000"Includes bibliographical references.Mode of access: Internet
Description based on: NSF 80-303 (Feb. 20, 1980); title from caption.Mode of access: Internet
"October 1979"--Cover.Includes bibliographical references.Mode of access: Internet
Cover title."OMB no. 3145-0058.""NSF 85-26"--P. [4] of cover."12/31/85."Mode of access: Internet
"September 1991"--P. [2] of cover.Cover title.Includes bibliographical references (p. 7).Mode of acc...
"April 1979"--Cover."Office of Space Science, Washington, D.C."Mode of access: Internet
"September 1981"--P. [2] of cover.Cover title.Bibliography: p. 38.Mode of access: Internet
"FWS/OBS ; 78/75"Aug. 1978."Biological Services Program."Includes bibliographies.Mode of access: Int...
"August 2000"--P. [2] of cover.Cover title.Includes bibliographical references (p. 42-43).Mode of ac...
"April 2003"--Cover.Includes bibliographical references (p. 77-85).Mode of access: Internet
Later edition published under title: General biology; 1952 edition published under title: The scienc...
Includes index."Report prepared for the National Science Board, National Science Foundation."Bibliog...
"July 1966"--AcknowledgmentsIncludes bibliographical references (p. 130-139)Mode of access: Internet
"NSF 84-301"--p. [4] of cover.Includes bibliographical references.Mode of access: Internet
"Issued September 1983"--P. [1]Cover title.Bibliography: p. 62-63.Mode of access: Internet
"NSB 00-22""February 2, 2000"Includes bibliographical references.Mode of access: Internet
Description based on: NSF 80-303 (Feb. 20, 1980); title from caption.Mode of access: Internet