APA (7e ed.) Bronvermelding

O'NEIL, P. V. (1972). Fundamental concepts of topology. Gordon and Breach.

Chicago (17e ed.) Bronvermelding

O'NEIL, Peter V. Fundamental Concepts of Topology. New York: Gordon and Breach, 1972.

MLA (9e ed.) Bronvermelding

O'NEIL, Peter V. Fundamental Concepts of Topology. Gordon and Breach, 1972.