एपीए उद्धरण

Harrison, M. (2002). New proficiency testbuilder: New tests that teach. Macmillan Publishers Limited.

शिकागो स्टाइल उद्धरण

Harrison, Mark. New Proficiency Testbuilder: New Tests That Teach. Macmillan Publishers Limited, 2002.

एमएलए उद्धरण

Harrison, Mark. New Proficiency Testbuilder: New Tests That Teach. Macmillan Publishers Limited, 2002.