एपीए उद्धरण

Crawford, R. J. (2006). Plastics engineering (3rd ed.). Butterworth -Heinemann.

शिकागो स्टाइल उद्धरण

Crawford, R J. Plastics Engineering. 3rd ed. Woburn: Butterworth -Heinemann, 2006.

एमएलए उद्धरण

Crawford, R J. Plastics Engineering. 3rd ed. Butterworth -Heinemann, 2006.