APA ציטוט

Dummett, P., Hughes, J., & Stephenson, H. Life: Pre- intermediate student's book with online workbook. Singapore.

Trích dẫn kiểu Chicago

Dummett, Paul, John Hughes, và Helen Stephenson. Life: Pre- Intermediate Student's Book With Online Workbook. Singapore.

ציטוט MLA

Dummett, Paul, John Hughes, và Helen Stephenson. Life: Pre- Intermediate Student's Book With Online Workbook. Singapore.