Não informado. (1961). Advertising and Sales Promotion. Crain Communications.
Chicago-Zitierstil (17. Ausg.)Não informado. Advertising and Sales Promotion. Chicago, Ill: Crain Communications, 1961.
MLA-Zitierstil (8. Ausg.)Não informado. Advertising and Sales Promotion. Crain Communications, 1961.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.