Gay, D. (2007). Explorations in topology: Map coloring, surfaces, and knots. Elsevier Academic Press.
استشهاد بنمط شيكاغوGay, David. Explorations in Topology: Map Coloring, Surfaces, and Knots. Amsterdam ; Boston: Elsevier Academic Press, 2007.
MLA استشهادGay, David. Explorations in Topology: Map Coloring, Surfaces, and Knots. Elsevier Academic Press, 2007.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.