Cita APA

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

Citación estilo Chicago

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

Cita MLA

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

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.