Gaya APA

Zhang, G, C, A, P. (1905). Chromatic Graph Theory . : CV. Spektra Anugerahabadi.

Gaya MLA

Zhang, Gary, Chartrand, And, Ping. "Chromatic Graph Theory". : CV. Spektra Anugerahabadi, 1905. Tadris Ilmu Pengetahuan Alam.