एपीए उद्धरण

O'Sullivan, B. (2011). Language testing: Theories and practices. Basingstoke: Palgrave Macmillan.

शिकागो स्टाइल उद्धरण

O'Sullivan, Barry. Language Testing: Theories and Practices. Basingstoke: Palgrave Macmillan, 2011.

एमएलए उद्धरण

O'Sullivan, Barry. Language Testing: Theories and Practices. Basingstoke: Palgrave Macmillan, 2011.