Cita APA (7a ed.)

Armstrong, M. A., & Armstrong, M. A. (1983). Basic topology. Springer-Verlag.

Cita Chicago Style (17a ed.)

Armstrong, M. A., y Mark Anthony Armstrong. Basic Topology. New York: Springer-Verlag, 1983.

Cita MLA (8a ed.)

Armstrong, M. A., y Mark Anthony Armstrong. Basic Topology. Springer-Verlag, 1983.