Information selection systems retrieval replica copies;
a-state-of-the-art report
[by] Thomas C. Bagg and Mary Elizabeth Stevens.

APA Citation

Bagg, T. C., Stevens, M. Elizabeth. (1961). Information selection systems retrieval replica copies: a-state-of-the-art report. [Washington: U.S. Dept. of Commerce, National Bureau of Standards].

MLA Citation

Bagg, Thomas C, and Mary Elizabeth Stevens. Information Selection Systems Retrieval Replica Copies: A-state-of-the-art Report. [Washington: U.S. Dept. of Commerce, National Bureau of Standards], 1961.

Warning: These citations may not always be complete (especially for serials).