APA (7th ed.) Zitazioa

Greenleaf, W. J. (1955). Occupations and careers. McGraw-Hill.

Chicago Style (17th ed.) Zitazioa

Greenleaf, Walter James. Occupations and Careers. Nueva York: McGraw-Hill, 1955.

MLA (9th ed.) Zitazioa

Greenleaf, Walter James. Occupations and Careers. McGraw-Hill, 1955.