Cita APA (7a ed.)

Kuratowski, K., & Engelking, R. (1972). Introduction to set theory and topology (Completely revised 2d English edition.). Pergamon Press.

Cita Chicago Style (17a ed.)

Kuratowski, Kazimierz, y Ryszard Engelking. Introduction to Set Theory and Topology. Completely revised 2d English edition. Oxford ; New York: Pergamon Press, 1972.

Cita MLA (8a ed.)

Kuratowski, Kazimierz, y Ryszard Engelking. Introduction to Set Theory and Topology. Completely revised 2d English edition. Pergamon Press, 1972.