Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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