Cita APA (7a ed.)

Katzan, H. (1973). Computer data security. Van Nostrand Reinhold.

Cita Chicago Style (17a ed.)

Katzan, Harry. Computer Data Security. New York [etc.]: Van Nostrand Reinhold, 1973.

Cita MLA (9a ed.)

Katzan, Harry. Computer Data Security. Van Nostrand Reinhold, 1973.