Cita APA

Hill, D. A. (2013). Life: Upper Intermediate. Teacher's Book (1a. ed.). National Geographic Learning.

Citación estilo Chicago

Hill, David A. Life: Upper Intermediate. Teacher's Book. 1a. ed. Hampshire: National Geographic Learning, 2013.

Cita MLA

Hill, David A. Life: Upper Intermediate. Teacher's Book. 1a. ed. National Geographic Learning, 2013.