एपीए उद्धरण

Jones, L. (1986). Progress to Proficiency: Student's Book. Cambridge: Cambridge University.

शिकागो स्टाइल उद्धरण

Jones, Leo. Progress to Proficiency: Student's Book. Cambridge: Cambridge University, 1986.

एमएलए उद्धरण

Jones, Leo. Progress to Proficiency: Student's Book. Cambridge: Cambridge University, 1986.