एपीए उद्धरण

Geffner, A. B. (1991). Business letters the Easy Way. Paris: Hermes*.

शिकागो स्टाइल उद्धरण

Geffner, Andrea B. Business Letters the Easy Way. Paris: Hermes*, 1991.

एमएलए उद्धरण

Geffner, Andrea B. Business Letters the Easy Way. Paris: Hermes*, 1991.