APA استشهاد

Holloway, R. J., & Hancock, R. S. (1973). Marketing in a changing environment (2nd ed.). John Wiley and Sons.

استشهاد بنمط شيكاغو

Holloway, Robert J., و Robert S. Hancock. Marketing in a Changing Environment. 2nd ed. New York: John Wiley and Sons, 1973.

MLA استشهاد

Holloway, Robert J., و Robert S. Hancock. Marketing in a Changing Environment. 2nd ed. John Wiley and Sons, 1973.