A directory of computer software applications :
Communications, 1970-January, 1979.

APA Citation

United States. National Technical Information Service. (1979). A directory of computer software applications: Communications, 1970-January, 1979. Springfield, Va.: U.S. Dept. of Commerce, National Technical Information Service.

MLA Citation

United States. National Technical Information Service. A Directory of Computer Software Applications: Communications, 1970-January, 1979. Springfield, Va.: U.S. Dept. of Commerce, National Technical Information Service, 1979.

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