Cita APA (7a ed.)

Harwood, N. (2010). English language teaching materials: Theory and practice. Cambridge University Press.

Cita Chicago Style (17a ed.)

Harwood, Nigel. English Language Teaching Materials: Theory and Practice. Cambridge [etc.]: Cambridge University Press, 2010.

Cita MLA (9a ed.)

Harwood, Nigel. English Language Teaching Materials: Theory and Practice. Cambridge University Press, 2010.