O'NEIL, P. V. (1972). Fundamental concepts of topology. Gordon and Breach.
Chicagoスタイル(17版)引用形式O'NEIL, Peter V. Fundamental Concepts of Topology. New York: Gordon and Breach, 1972.
MLA(9版)引用形式O'NEIL, Peter V. Fundamental Concepts of Topology. Gordon and Breach, 1972.
警告: この引用は必ずしも正確ではありません.