Sally, J. D., & Sally, P. (2012). Roots to research: A vertical development of mathematical problems. American Mathematical Society.
استشهاد بنمط شيكاغوSally, Judith D., و Paul Sally. Roots to Research: A Vertical Development of Mathematical Problems. Providence, R.I.: American Mathematical Society, 2012.
MLA استشهادSally, Judith D., و Paul Sally. Roots to Research: A Vertical Development of Mathematical Problems. American Mathematical Society, 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.