Cita APA

Fenchel, W. 1. (1989). Elementary geometry in hyperbolic space. W. de Gruyter.

Citación estilo Chicago

Fenchel, W. 1905-. Elementary Geometry in Hyperbolic Space. Berlin ; New York: W. de Gruyter, 1989.

Cita MLA

Fenchel, W. 1905-. Elementary Geometry in Hyperbolic Space. Berlin ; New York: W. de Gruyter, 1989.