Title from title screen (viewed on May 23, 2003). "October 1985." "OTA-H-262."
Includes bibliographical references.
Also available via CD-ROM.
System requirements: Adobe Acrobat Reader. Mode of access: Internet from the UNT Cybercemetery web site. Address as of 5/23/2003: http://govinfo.library.unt.edu/ota/Ota%5f4/DATA/1985/8516.PDF; current access available via PURL.