APA (7e ed.) Bronvermelding

Sayer, M. (2014). Life: Elementary. Teacher's Book (1a. ed.). National Geographic Learning.

Chicago (17e ed.) Bronvermelding

Sayer, Mike. Life: Elementary. Teacher's Book. 1a. ed. Hampshire: National Geographic Learning, 2014.

MLA (9e ed.) Bronvermelding

Sayer, Mike. Life: Elementary. Teacher's Book. 1a. ed. National Geographic Learning, 2014.