एपीए उद्धरण

Hashemi, L. (2010). Objective PET: Student's book with answers. Cambridge: Cambridge University Press.

शिकागो स्टाइल उद्धरण

Hashemi, Louise. Objective PET: Student's Book With Answers. Cambridge: Cambridge University Press, 2010.

एमएलए उद्धरण

Hashemi, Louise. Objective PET: Student's Book With Answers. Cambridge: Cambridge University Press, 2010.