APA استشهاد

Holloway, R. J., & Hancock, R. S. (1968). Marketing in a changing environment. John Wiley&sons.

استشهاد بنمط شيكاغو

Holloway, Robert J., و Robert S. Hancock. Marketing in a Changing Environment. London: John Wiley&sons, 1968.

MLA استشهاد

Holloway, Robert J., و Robert S. Hancock. Marketing in a Changing Environment. John Wiley&sons, 1968.