एपीए उद्धरण

(2003). Developing writing: Writing skills practice book for EFL beginning/intermediate level. United States: Office of English Language Program.

शिकागो स्टाइल उद्धरण

Developing Writing: Writing Skills Practice Book for EFL Beginning/intermediate Level. United States: Office of English Language Program, 2003.

एमएलए उद्धरण

Developing Writing: Writing Skills Practice Book for EFL Beginning/intermediate Level. United States: Office of English Language Program, 2003.