Cita APA (7a ed.)

Hess, N., & Ur, P. (2012). Teaching large multilevel classes (13th printing.). Cambridge University Press.

Cita Chicago Style (17a ed.)

Hess, Natalie, y Penny Ur. Teaching Large Multilevel Classes. 13th printing. Cambridge [etc.]: Cambridge University Press, 2012.

Cita MLA (9a ed.)

Hess, Natalie, y Penny Ur. Teaching Large Multilevel Classes. 13th printing. Cambridge University Press, 2012.