Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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