APA استشهاد

Gay, L. R., & Diehl P. L. (1992). Research Methods for Buisness and Management. Mc MIllan.

استشهاد بنمط شيكاغو

Gay, L. R., و Diehl P. L. Research Methods for Buisness and Management. New York: Mc MIllan, 1992.

MLA استشهاد

Gay, L. R., و Diehl P. L. Research Methods for Buisness and Management. Mc MIllan, 1992.