APA (7th ed.) Citation

Gamble, T. K., & Gamble, M. (1990). Phone power: Techniques for the real estate professional. Real estate education Co.

Chicago Style (17th ed.) Citation

Gamble, Teri Kwal, and Mike Gamble. Phone Power: Techniques for the Real Estate Professional. Illinois USA: Real estate education Co, 1990.

MLA (9th ed.) Citation

Gamble, Teri Kwal, and Mike Gamble. Phone Power: Techniques for the Real Estate Professional. Real estate education Co, 1990.