Richards, I., & Gibson, C. M. (1958). English through pictures ([2nd. print.].). Pocket Books.
Cita Chicago Style (17a ed.)Richards, I.A, y Christine M. Gibson. English Through Pictures. [2nd. print.]. New York: Pocket Books, 1958.
Cita MLA (9a ed.)Richards, I.A, y Christine M. Gibson. English Through Pictures. [2nd. print.]. Pocket Books, 1958.
Precaución: Estas citas no son 100% exactas.