Dyfyniad APA

Phillips, C. F., Duncan, D. J., Carman, J. M., & Uhl, K. P. (1973). Phillips and Duncan's Marketing: Principles and methods (7th ed.). R. D. Irwin.

Dyfyniad Arddull Chicago

Phillips, Charles Franklin, Delbert J. Duncan, James M. Carman, and Kenneth P. Uhl. Phillips and Duncan's Marketing: Principles and Methods. 7th ed. Homewood, Ill: R. D. Irwin, 1973.

Dyfyniad MLA

Phillips, Charles Franklin, et al. Phillips and Duncan's Marketing: Principles and Methods. 7th ed. R. D. Irwin, 1973.

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