Dyfyniad APA

Choudhary, P., Elliott, R., & Toop, A. (1982). Successful sales promotion. Orient longman.

Dyfyniad Arddull Chicago

Choudhary, Pran, Ricky Elliott, and Allan Toop. Successful Sales Promotion. India: Orient longman, 1982.

Dyfyniad MLA

Choudhary, Pran, et al. Successful Sales Promotion. Orient longman, 1982.

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