Gaya APA

Channell, C, E., Crusius, T, W. (2012). Engaging Questions: a guide to writing . New York: Mc Graw Hill Education.

Gaya MLA

Channell, Carolyn, E;., Crusius, Timothy, W.. "Engaging Questions: a guide to writing". New York: Mc Graw Hill Education, 2012. Text.