एपीए उद्धरण

Welford, R. (1999). Corporate environmental management: Systems and strategies. Universities Press.

शिकागो स्टाइल उद्धरण

Welford, Richard. Corporate Environmental Management: Systems and Strategies. Hyderabad: Universities Press, 1999.

एमएलए उद्धरण

Welford, Richard. Corporate Environmental Management: Systems and Strategies. Universities Press, 1999.