Cita APA (7th ed.)

GREENBERG, M. J. (1974). Euclidean and non-euclidean geometries. W.H.Freeman and co.

Cita Chicago (17th ed.)

GREENBERG, Marvin Jay. Euclidean and Non-euclidean Geometries. San Francisco: W.H.Freeman and co, 1974.

Cita MLA (9th ed.)

GREENBERG, Marvin Jay. Euclidean and Non-euclidean Geometries. W.H.Freeman and co, 1974.