एपीए उद्धरण

(1999). The grammar book: An Esl / Efl teacher course.

शिकागो स्टाइल उद्धरण

The Grammar Book: An Esl / Efl Teacher Course. 1999.

एमएलए उद्धरण

The Grammar Book: An Esl / Efl Teacher Course. 1999.