Roberts, M. L. (1999). Direct marketing management (2nd ed.). Prentice-Hall of India.
Chicago Edition CitationRoberts, Mary Lou. Direct Marketing Management. 2nd ed. London: Prentice-Hall of India, 1999.
MLA Edition CitationRoberts, Mary Lou. Direct Marketing Management. 2nd ed. Prentice-Hall of India, 1999.
Warning: These citations may not always be 100% accurate.