एपीए उद्धरण

Parkinson, A. C. (1972). Foundations of technical drawing. ELBS.

शिकागो स्टाइल उद्धरण

Parkinson, A C. Foundations of Technical Drawing. London: ELBS, 1972.

एमएलए उद्धरण

Parkinson, A C. Foundations of Technical Drawing. ELBS, 1972.