Title from title screen (viewed on May 22, 2003). "October 1989."
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 5/22/2003: http://govinfo.library.unt.edu/ota/Ota%5f2/DATA/1989/8916.PDF; current access available via PURL.