"Summary" -- Cover."OTA-CIT-188"--P. [4] of cover."September 1982"--P. [4] of cover.Mode of access: Internet
"OTA-PC-104 (revised)"--P. 4 of cover."January 1981"--P. 4 of cover.Includes bibliographical referen...
"April 1986"--Cover.Includes bibliographical references.Mode of access: Internet
"OTA-ISC-209"--P. 4 of cover."May 1983"--P. 4 of cover.Includes bibliographical references.Mode of a...
"OTA-CIT-147"--P. 4 of cover."October 1981"--P. 4 of cover.Cover title.Mode of access: Internet
"OTA-BA-265"--P. [4] of cover."October 1984"--P. [4] of cover.Cover title.Includes bibliographical r...
"OTA-R-130"--P. 4 of cover."January 1981"--P. 4 of cover.Includes bibliographical references.Mode of...
"OTA-TET-284."--P. [4] of cover."May 1988."--P. [4] of cover.Shipping list no.: 88-313-P.Includes bi...
"OTA-H-182"--P. 4 of cover."September 1982."Cover title.Mode of access: Internet
"OTA-CIT-269"--P. [4] of cover."February 1985"--P. [4] of cover.Cover title.Mode of access: Internet
"OTA-H-182"--P. [4] of cover"September 1982."Cover titleMode of access: Internet
"OTA-SET-380."--P. [4] of cover."September 1988."--P. [4] of cover.Includes bibliographical referenc...
"OTA-CIT-203"--P. [4] of cover."September 1984"--P. [4] of cover.Cover title.Mode of access: Interne...
"OTA-E-148"--P. 4 of cover."March 1982"--P. 4 of cover.Cover title.Mode of access: Internet
"OTA-CIT-397"--P. [4] of cover."October 1988"--P. [4] of cover.Shipping list no.: 88-594-P.Bibliogra...
"Division of Educational Technology"--P. [1]"September 1980"--P. [1]Cover title.Mode of access: Inte...
"OTA-PC-104 (revised)"--P. 4 of cover."January 1981"--P. 4 of cover.Includes bibliographical referen...
"April 1986"--Cover.Includes bibliographical references.Mode of access: Internet
"OTA-ISC-209"--P. 4 of cover."May 1983"--P. 4 of cover.Includes bibliographical references.Mode of a...
"OTA-CIT-147"--P. 4 of cover."October 1981"--P. 4 of cover.Cover title.Mode of access: Internet
"OTA-BA-265"--P. [4] of cover."October 1984"--P. [4] of cover.Cover title.Includes bibliographical r...
"OTA-R-130"--P. 4 of cover."January 1981"--P. 4 of cover.Includes bibliographical references.Mode of...
"OTA-TET-284."--P. [4] of cover."May 1988."--P. [4] of cover.Shipping list no.: 88-313-P.Includes bi...
"OTA-H-182"--P. 4 of cover."September 1982."Cover title.Mode of access: Internet
"OTA-CIT-269"--P. [4] of cover."February 1985"--P. [4] of cover.Cover title.Mode of access: Internet
"OTA-H-182"--P. [4] of cover"September 1982."Cover titleMode of access: Internet
"OTA-SET-380."--P. [4] of cover."September 1988."--P. [4] of cover.Includes bibliographical referenc...
"OTA-CIT-203"--P. [4] of cover."September 1984"--P. [4] of cover.Cover title.Mode of access: Interne...
"OTA-E-148"--P. 4 of cover."March 1982"--P. 4 of cover.Cover title.Mode of access: Internet
"OTA-CIT-397"--P. [4] of cover."October 1988"--P. [4] of cover.Shipping list no.: 88-594-P.Bibliogra...
"Division of Educational Technology"--P. [1]"September 1980"--P. [1]Cover title.Mode of access: Inte...
"OTA-PC-104 (revised)"--P. 4 of cover."January 1981"--P. 4 of cover.Includes bibliographical referen...
"April 1986"--Cover.Includes bibliographical references.Mode of access: Internet
"OTA-ISC-209"--P. 4 of cover."May 1983"--P. 4 of cover.Includes bibliographical references.Mode of a...