एपीए उद्धरण

Giesecke, F. E. (1974). Techincal Drawing (6th Ed.). Macmillan.

शिकागो स्टाइल उद्धरण

Giesecke, Fredrick E. Techincal Drawing. 6th Ed. NewYork: Macmillan, 1974.

एमएलए उद्धरण

Giesecke, Fredrick E. Techincal Drawing. 6th Ed. Macmillan, 1974.