एपीए उद्धरण

Langdon, R. (1985). Design and innovation policy and management. London: Frances Pinter( publishers).

शिकागो स्टाइल उद्धरण

Langdon, Richard. Design and Innovation Policy and Management. London: Frances Pinter( publishers), 1985.

एमएलए उद्धरण

Langdon, Richard. Design and Innovation Policy and Management. London: Frances Pinter( publishers), 1985.