एपीए उद्धरण

Doff, A., & Jones, C. (1994). Language in use: Intermediate : self-study workbook with answer key. Cambridge: Cambridge U. P..

शिकागो स्टाइल उद्धरण

Doff, Adrian, और Christopher Jones. Language in Use: Intermediate : Self-study Workbook With Answer Key. Cambridge: Cambridge U. P., 1994.

एमएलए उद्धरण

Doff, Adrian, और Christopher Jones. Language in Use: Intermediate : Self-study Workbook With Answer Key. Cambridge: Cambridge U. P., 1994.