APA (7th ed.) Citation

Fenchel, W., Nielsen, J., & Schmidt, A. L. (2003). Discontinuous groups of isometries in the hyperbolic plane. Walter de Gruyter.

Chicago Style (17th ed.) Citation

Fenchel, W., Jakob Nielsen, and Asmus L. Schmidt. Discontinuous Groups of Isometries in the Hyperbolic Plane. Berlin ; New York: Walter de Gruyter, 2003.

MLA (9th ed.) Citation

Fenchel, W., et al. Discontinuous Groups of Isometries in the Hyperbolic Plane. Walter de Gruyter, 2003.