Style de citation APA (7e éd.)

Hughes, J. (2014). Life: Elementary. Student's book (1a. ed.). National Geographic Learning.

Style de citation Chicago (17e éd.)

Hughes, John. Life: Elementary. Student's Book. 1a. ed. Hampshire: National Geographic Learning, 2014.

Style de citation MLA (9e éd.)

Hughes, John. Life: Elementary. Student's Book. 1a. ed. National Geographic Learning, 2014.