एपीए उद्धरण

Cosgrove, A. (2016). IELTS life skills: Official Cambridge test practice B1 with answers. Cambridge, U.K: Cambridge University Press.

शिकागो स्टाइल उद्धरण

Cosgrove, Anthony. IELTS Life Skills: Official Cambridge Test Practice B1 With Answers. Cambridge, U.K: Cambridge University Press, 2016.

एमएलए उद्धरण

Cosgrove, Anthony. IELTS Life Skills: Official Cambridge Test Practice B1 With Answers. Cambridge, U.K: Cambridge University Press, 2016.