APA (7th ed.) Citation

Haylock, D., & McDougall, D. (1999). Mathematics every elementary teacher should know. Trifolium Book Inc..

Chicago Style (17th ed.) Citation

Haylock, Derek, and Douglas McDougall. Mathematics Every Elementary Teacher Should Know. Toronto: Trifolium Book Inc., 1999.

MLA (9th ed.) Citation

Haylock, Derek, and Douglas McDougall. Mathematics Every Elementary Teacher Should Know. Trifolium Book Inc., 1999.

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