Cita APA (7th ed.)

Dehn, M., & translated and introduced by John Stillwell. (1987). Papers on group theory and topology. Springer-Verlag.

Cita Chicago (17th ed.)

Dehn, Max, i translated and introduced by John Stillwell. Papers on Group Theory and Topology. New York: Springer-Verlag, 1987.

Cita MLA (9th ed.)

Dehn, Max, i translated and introduced by John Stillwell. Papers on Group Theory and Topology. Springer-Verlag, 1987.