Gaya APA

Peterson, N, A. (1989). Contemporary labor economics: student workbook to accompany McConnell-Brue (2nd ed.). New York: McGraw-Hill.

Gaya MLA

Peterson, Norris, A.. "Contemporary labor economics: student workbook to accompany McConnell-Brue". 2nd ed. New York: McGraw-Hill, 1989. Text.