Cita APA (7a ed.)

Lehmann, E. (2015). Teaching Mathematics Today (2nd ed.). Shell Educational Publishing.

Cita Chicago Style (17a ed.)

Lehmann, Erin. Teaching Mathematics Today. 2nd ed. Huntington Beach: Shell Educational Publishing, 2015.

Cita MLA (8a ed.)

Lehmann, Erin. Teaching Mathematics Today. 2nd ed. Shell Educational Publishing, 2015.