APA (7th ed.) Citation

Phelps, O. W. (1950). Introduction to labor economics. McGraw-Hill.

Chicago Style (17th ed.) Citation

Phelps, Orme Wheelock. Introduction to Labor Economics. New York: McGraw-Hill, 1950.

MLA (9th ed.) Citation

Phelps, Orme Wheelock. Introduction to Labor Economics. McGraw-Hill, 1950.