एपीए उद्धरण

Barraclough, C. (2008). Activate B1+: Sudents' book. Harlow: Pearson.

शिकागो स्टाइल उद्धरण

Barraclough, Carolyn. Activate B1+: Sudents' Book. Harlow: Pearson, 2008.

एमएलए उद्धरण

Barraclough, Carolyn. Activate B1+: Sudents' Book. Harlow: Pearson, 2008.