Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.