APA (7th ed.) Citation

Sbed, M. (1990). Journey into geometries. The Mathematical Association of America.

Chicago Style (17th ed.) Citation

Sbed, Marta. Journey into Geometries. Washington, D.C: The Mathematical Association of America, 1990.

MLA (9th ed.) Citation

Sbed, Marta. Journey into Geometries. The Mathematical Association of America, 1990.