ROBERTS, & BERGER. (1989). Direct marketing management. New Jersey: Prentice Hall.
Chicago Style CitationROBERTS, and BERGER. Direct Marketing Management. New Jersey: Prentice Hall, 1989.
MLA CitationROBERTS, and BERGER. Direct Marketing Management. New Jersey: Prentice Hall, 1989.
Warning: These citations may not always be 100% accurate.