APA (7th ed.) Citation

Katzenstein, H., & Sachs, W. S. (1992). Direct marketing (2nd ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Katzenstein, Herbert, and William S. Sachs. Direct Marketing. 2nd ed. New York: McGraw-Hill, 1992.

MLA (9th ed.) Citation

Katzenstein, Herbert, and William S. Sachs. Direct Marketing. 2nd ed. McGraw-Hill, 1992.