Παραπομπή APA
Herpel, G. L., & Collins, R. A. (1972). Speciality advertising in marketing. Homewood,Ill.: Dow Jones-Irwin.
Παραπομπή Chicago StyleHerpel, George Lloyd, and Richard A. Collins. Speciality Advertising in Marketing. Homewood,Ill.: Dow Jones-Irwin, 1972.
Παραπομπή MLAHerpel, George Lloyd, and Richard A. Collins. Speciality Advertising in Marketing. Homewood,Ill.: Dow Jones-Irwin, 1972.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.