एपीए उद्धरण

Cooley, P. (1972). Engineering drawing, comunication and design. Pitman.

शिकागो स्टाइल उद्धरण

Cooley, Peter. Engineering Drawing, Comunication and Design. London: Pitman, 1972.

एमएलए उद्धरण

Cooley, Peter. Engineering Drawing, Comunication and Design. Pitman, 1972.