Cita APA (7th ed.)

Williams, J. (2007). American studies: Reading study skills writing. Intermediate (1a. ed.). cambridge University Press.

Cita Chicago (17th ed.)

Williams, Jessica. American Studies: Reading Study Skills Writing. Intermediate. 1a. ed. Cambridge: cambridge University Press, 2007.

Cita MLA (9th ed.)

Williams, Jessica. American Studies: Reading Study Skills Writing. Intermediate. 1a. ed. cambridge University Press, 2007.