एपीए उद्धरण

Parkinson, A. (1933). First year engineering drawing covering the first year national certificate course in mechanical engineering (6.). Sir Issac Pitman & Sons Ltd.

शिकागो स्टाइल उद्धरण

Parkinson, A.C. First Year Engineering Drawing Covering the First Year National Certificate Course in Mechanical Engineering. 6. London: Sir Issac Pitman & Sons Ltd, 1933.

एमएलए उद्धरण

Parkinson, A.C. First Year Engineering Drawing Covering the First Year National Certificate Course in Mechanical Engineering. 6. Sir Issac Pitman & Sons Ltd, 1933.