Cita APA (7a ed.)

Stone, B., & Jacobs, R. (2008). Successful direct marketing methods: Interactive, database, and customer-based marketing for digital age (8th ed.). McGraw-Hill.

Cita Chicago Style (17a ed.)

Stone, Bob, y Ron Jacobs. Successful Direct Marketing Methods: Interactive, Database, and Customer-based Marketing for Digital Age. 8th ed. London [etc.]: McGraw-Hill, 2008.

Cita MLA (9a ed.)

Stone, Bob, y Ron Jacobs. Successful Direct Marketing Methods: Interactive, Database, and Customer-based Marketing for Digital Age. 8th ed. McGraw-Hill, 2008.