APA Edition Citation

Sally, J. D., & Sally, P. J. (2007). Roots to research: A vertical development of mathematical problems.

Chicago Edition Citation

Sally, Judith D., and Paul J. Sally. Roots to Research: A Vertical Development of Mathematical Problems. American Mathematical Society, 2007.

MLA Edition Citation

Sally, Judith D., and Paul J. Sally. Roots to Research: A Vertical Development of Mathematical Problems. 2007.

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