APA (7th ed.) Citation

Katzan, H. (1973). Computer data security (1. print.). Van Nostrand.

Chicago Style (17th ed.) Citation

Katzan, Harry. Computer Data Security. 1. print. New York: Van Nostrand, 1973.

MLA (9th ed.) Citation

Katzan, Harry. Computer Data Security. 1. print. Van Nostrand, 1973.