PETERSON, N. A. (1989). Student workbook to accompany McConnell-Brue: Contemporary labor economics.-- Ed.2. McGraw-Hill.
Lua i Stíl Chicago (17ú heag.)PETERSON, Norris A. Student Workbook to Accompany McConnell-Brue: Contemporary Labor Economics.-- Ed.2. New York: McGraw-Hill, 1989.
Lua MLA (9ú heag.)PETERSON, Norris A. Student Workbook to Accompany McConnell-Brue: Contemporary Labor Economics.-- Ed.2. McGraw-Hill, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.