APA (7th ed.) Citation

Jefkins, F. (1990). The secrets of successful direct response marketing. Heinemann Professional Pub.

Chicago Style (17th ed.) Citation

Jefkins, Frank. The Secrets of Successful Direct Response Marketing. Oxford: Heinemann Professional Pub, 1990.

MLA (9th ed.) Citation

Jefkins, Frank. The Secrets of Successful Direct Response Marketing. Heinemann Professional Pub, 1990.

Warning: These citations may not always be 100% accurate.