एपीए उद्धरण

(2002). Market Leader ( Upper - Intermediate). Pearson & Longman.

शिकागो स्टाइल उद्धरण

Market Leader ( Upper - Intermediate). Pearson & Longman, 2002.

एमएलए उद्धरण

Market Leader ( Upper - Intermediate). Pearson & Longman, 2002.