Cita APA

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

Citación estilo Chicago

Phelps, Orme Wheelock. Introduction to Labor Economics. 4th ed. New York: McGraw-Hill, 1967.

Cita MLA

Phelps, Orme Wheelock. Introduction to Labor Economics. 4th ed. McGraw-Hill, 1967.