Cita APA (7th ed.)

Williams, J. (2008). American studies: Reading study skills writing. Teacher's manual Intermediate (1a. ed.). Cambridge University Press.

Cita Chicago (17th ed.)

Williams, Jessica. American Studies: Reading Study Skills Writing. Teacher's Manual Intermediate. 1a. ed. Cambridge: Cambridge University Press, 2008.

Cita MLA (9th ed.)

Williams, Jessica. American Studies: Reading Study Skills Writing. Teacher's Manual Intermediate. 1a. ed. Cambridge University Press, 2008.