एपीए उद्धरण

Sahanaya, W. IELTS preparation and practice. Oxford: Oxford University Press.

शिकागो स्टाइल उद्धरण

Sahanaya, Wendy. IELTS Preparation and Practice. Oxford: Oxford University Press.

एमएलए उद्धरण

Sahanaya, Wendy. IELTS Preparation and Practice. Oxford: Oxford University Press.