APA (7th ed.) Citation

WELLS, W. D. (1989). Planning for R.O.I: Effective Advertising Strategy. American Psychology Association, Inc.

Chicago Style (17th ed.) Citation

WELLS, William D. Planning for R.O.I: Effective Advertising Strategy. American Psychology Association, Inc, 1989.

MLA (8th ed.) Citation

WELLS, William D. Planning for R.O.I: Effective Advertising Strategy. American Psychology Association, Inc, 1989.

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