APA (7th ed.) Citation

Phelps, O. W. (1967). Introduction to labor economics (4.ed.). MacGraw-Hill.

Chicago Style (17th ed.) Citation

Phelps, Orme W. Introduction to Labor Economics. 4.ed. New York: MacGraw-Hill, 1967.

MLA (9th ed.) Citation

Phelps, Orme W. Introduction to Labor Economics. 4.ed. MacGraw-Hill, 1967.