एपीए उद्धरण

Cowan, B. A. (1973). General Practitioners' Superannuation.

शिकागो स्टाइल उद्धरण

Cowan, B. A. General Practitioners' Superannuation. 1973.

एमएलए उद्धरण

Cowan, B. A. General Practitioners' Superannuation. 1973.