एपीए उद्धरण

Whittaker, A. (1985). Formation evaluation: Geological procedures. IHRDC.

शिकागो स्टाइल उद्धरण

Whittaker, Alun. Formation Evaluation: Geological Procedures. Boston: IHRDC, 1985.

एमएलए उद्धरण

Whittaker, Alun. Formation Evaluation: Geological Procedures. IHRDC, 1985.