एपीए उद्धरण

Crossfield. (1977). How to develop executive skills. Crossfield.

शिकागो स्टाइल उद्धरण

Crossfield. How to Develop Executive Skills. New Delhi: Crossfield, 1977.

एमएलए उद्धरण

Crossfield. How to Develop Executive Skills. Crossfield, 1977.