एपीए उद्धरण

Elfenbein, J. (1973). Modern business: Buisness letters and communications. Robert Hale.

शिकागो स्टाइल उद्धरण

Elfenbein, Julien. Modern Business: Buisness Letters and Communications. London: Robert Hale, 1973.

एमएलए उद्धरण

Elfenbein, Julien. Modern Business: Buisness Letters and Communications. Robert Hale, 1973.