Cita APA (7th ed.)

National Science Foundation (U.S.) & Marron, B. A. (1973). A Study of six university-based information systems. U. S. Department of Commerce, National Bureau of Standards : for sale by the Supt. of Docs., U. S. Govt. Print. Off..

Cita Chicago (17th ed.)

National Science Foundation (U.S.) i Beatrice A. Marron. A Study of Six University-based Information Systems. Washington: U. S. Department of Commerce, National Bureau of Standards : for sale by the Supt. of Docs., U. S. Govt. Print. Off., 1973.

Cita MLA (8th ed.)

National Science Foundation (U.S.) i Beatrice A. Marron. A Study of Six University-based Information Systems. U. S. Department of Commerce, National Bureau of Standards : for sale by the Supt. of Docs., U. S. Govt. Print. Off., 1973.