Cita APA

Stueben, M., & Sandford, D. (1998). Twenty years before the blackboard: The lessons and humor of a mathematics teacher. Mathematical Association of America.

Citación estilo Chicago

Stueben, Michael., and Diane Sandford. Twenty Years Before the Blackboard: The Lessons and Humor of a Mathematics Teacher. [Washington, DC]: Mathematical Association of America, 1998.

Cita MLA

Stueben, Michael., and Diane Sandford. Twenty Years Before the Blackboard: The Lessons and Humor of a Mathematics Teacher. [Washington, DC]: Mathematical Association of America, 1998.