APA (7th ed.) Zitazioa

Spencer, M. H. (1977). Contemporary microeconomics (3rd ed.). Worth.

Chicago Style (17th ed.) Zitazioa

Spencer, Milton H. Contemporary Microeconomics. 3rd ed. New York: Worth, 1977.

MLA (9th ed.) Zitazioa

Spencer, Milton H. Contemporary Microeconomics. 3rd ed. Worth, 1977.