Παραπομπή APA

Sayer, M. (2014). Life: Elementary. Teacher's Book. A2 (Vietnam edtion.). Singapore: National Geographic Learning; Cengage Learning.

Παραπομπή Chicago Style

Sayer, Mike. Life: Elementary. Teacher's Book. A2. Vietnam edtion. Singapore: National Geographic Learning; Cengage Learning, 2014.

Παραπομπή MLA

Sayer, Mike. Life: Elementary. Teacher's Book. A2. Vietnam edtion. Singapore: National Geographic Learning; Cengage Learning, 2014.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.