Cita APA (7th ed.)

Janich, K., & Levy, S. (1984). Topology. Springer-Verlag.

Cita Chicago (17th ed.)

Janich, Klaus, i Silvio Levy. Topology. New York: Springer-Verlag, 1984.

Cita MLA (9th ed.)

Janich, Klaus, i Silvio Levy. Topology. Springer-Verlag, 1984.