APA (7th ed.) Citation

Knowles, W. H. (1955). Personnel management: A human relations approach. American Book Co..

Chicago Style (17th ed.) Citation

Knowles, William H. Personnel Management: A Human Relations Approach. New York: American Book Co., 1955.

MLA (9th ed.) Citation

Knowles, William H. Personnel Management: A Human Relations Approach. American Book Co., 1955.