एपीए उद्धरण

Institution of civil engineers. (1981). Appropriate technology in civil engineering: Proceedings of the conferance held by the institution of civil engineers. Thomas telford Ltd.

शिकागो स्टाइल उद्धरण

Institution of civil engineers. Appropriate Technology in Civil Engineering: Proceedings of the Conferance Held by the Institution of Civil Engineers. London: Thomas telford Ltd, 1981.

एमएलए उद्धरण

Institution of civil engineers. Appropriate Technology in Civil Engineering: Proceedings of the Conferance Held by the Institution of Civil Engineers. Thomas telford Ltd, 1981.