Dyfyniad APA

Luick, J. F., & Ziegler, W. L. (1968). Sales promotion and modern merchandising. Mc Graw Hill.

Dyfyniad Arddull Chicago

Luick, John F., and William Lee Ziegler. Sales Promotion and Modern Merchandising. London: Mc Graw Hill, 1968.

Dyfyniad MLA

Luick, John F., and William Lee Ziegler. Sales Promotion and Modern Merchandising. Mc Graw Hill, 1968.

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