APA (7th ed.) Citation

Roberts-Phelps, G., & McDougall. (1997). 90 brain-teasers for trainers. Gower.

Chicago Style (17th ed.) Citation

Roberts-Phelps, Graham, and McDougall. 90 Brain-teasers for Trainers. Aldershot: Gower, 1997.

MLA (8th ed.) Citation

Roberts-Phelps, Graham, and McDougall. 90 Brain-teasers for Trainers. Gower, 1997.

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