एपीए उद्धरण

Institute of Civil Engineers. (1972). Safety in Wells and Boreholes (2nd ed.).

शिकागो स्टाइल उद्धरण

Institute of Civil Engineers. Safety in Wells and Boreholes. 2nd ed. London, 1972.

एमएलए उद्धरण

Institute of Civil Engineers. Safety in Wells and Boreholes. 2nd ed. 1972.