APA (7th ed.) Citation

Timm, P. R. (1995). 50 powerful ideas you can use to keep your customers (2nd ed.).

Chicago Style (17th ed.) Citation

Timm, Paul R. 50 Powerful Ideas You Can Use to Keep Your Customers. 2nd ed. Hawthorne areer Press, 1995.

MLA (9th ed.) Citation

Timm, Paul R. 50 Powerful Ideas You Can Use to Keep Your Customers. 2nd ed. 1995.