APA (7th ed.) Citation

Hemphill, C. F., & Hemphill, R. W. (1979). Security safeguards for the computer (3. pr.). American Management Assoc.

Chicago Style (17th ed.) Citation

Hemphill, Charles F., and Robert W. Hemphill. Security Safeguards for the Computer. 3. pr. New York: American Management Assoc, 1979.

MLA (8th ed.) Citation

Hemphill, Charles F., and Robert W. Hemphill. Security Safeguards for the Computer. 3. pr. American Management Assoc, 1979.