APA (7th ed.) Citation

Roth, W. F., Ryder, J. A., & Voehl, F. (1996). Problem solving for results. St. Lucie.

Chicago Style (17th ed.) Citation

Roth, William F., James A. Ryder, and Frank Voehl. Problem Solving for Results. Delray Beach, Florida: St. Lucie, 1996.

MLA (9th ed.) Citation

Roth, William F., et al. Problem Solving for Results. St. Lucie, 1996.