Kending, K. (2008). Sink or float ?: Thought problems in math and physics. The Mathematical Association of America.
استشهاد بنمط شيكاغوKending, Keith. Sink or Float ?: Thought Problems in Math and Physics. Washington: The Mathematical Association of America, 2008.
MLA استشهادKending, Keith. Sink or Float ?: Thought Problems in Math and Physics. The Mathematical Association of America, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.