Cita APA (7a ed.)

Gans, D. (1973). An introduction to non-Euclidean geometry. Academic Press.

Cita Chicago Style (17a ed.)

Gans, David. An Introduction to Non-Euclidean Geometry. New York: Academic Press, 1973.

Cita MLA (8a ed.)

Gans, David. An Introduction to Non-Euclidean Geometry. Academic Press, 1973.