एपीए उद्धरण

Schoenberg, I. E., & Irene E. Schoenberg. (2006). Focus on grammar. White Plains, NY: Pearson Longman.

शिकागो स्टाइल उद्धरण

Schoenberg, Irene E., और Irene E. Schoenberg. Focus On Grammar. White Plains, NY: Pearson Longman, 2006.

एमएलए उद्धरण

Schoenberg, Irene E., और Irene E. Schoenberg. Focus On Grammar. White Plains, NY: Pearson Longman, 2006.