एपीए उद्धरण

Hughes, J., & Stephenson, H. (2016). Life A2-B1: Student's book with online workbook. Singapore: National Geographic Learning.

शिकागो स्टाइल उद्धरण

Hughes, John, और Helen Stephenson. Life A2-B1: Student's Book With Online Workbook. Singapore: National Geographic Learning, 2016.

एमएलए उद्धरण

Hughes, John, और Helen Stephenson. Life A2-B1: Student's Book With Online Workbook. Singapore: National Geographic Learning, 2016.