Imprint varies: Washington, DC, 1977-90; Arlington, VA, 1977-91-
"Detailed statistical tables."
Some v. also available via Internet from the NSF SRS web site. Address as of 4/4/01: http://www.nsf.gov/sbe/srs/sed/start.htm; current access is available via PURL.
Microfiche. 1977-90- [Washington, D.C.] : Supt. of Docs., U.S. G.P.O., [1992- microfiches : negative.