Stone, B. (1986). Successful direct marketing methods/3e (3rd ed.). Crain books.
Citación estilo ChicagoStone, Bob. Successful Direct Marketing Methods/3e. 3rd ed. Crain books, 1986.
Cita MLAStone, Bob. Successful Direct Marketing Methods/3e. 3rd ed. Crain books, 1986.
Precaución: Estas citas no son 100% exactas.