APA استشهاد

Marshall, R. C., & Forbush, R. D. W. (1975). Business Economics, Principles and Cases (5th ed.). Richard,D. Irwin.

استشهاد بنمط شيكاغو

Marshall, R. Colberg, و R. Dascomb Whitaker Forbush. Business Economics, Principles and Cases. 5th ed. Illinois: Richard,D. Irwin, 1975.

MLA استشهاد

Marshall, R. Colberg, و R. Dascomb Whitaker Forbush. Business Economics, Principles and Cases. 5th ed. Richard,D. Irwin, 1975.