एपीए उद्धरण

Field, B. C. (2002). Environmental economics: An introduction. Boston, MA: McGraw-Hill/Irwin.

शिकागो स्टाइल उद्धरण

Field, Barry C. Environmental Economics: An Introduction. Boston, MA: McGraw-Hill/Irwin, 2002.

एमएलए उद्धरण

Field, Barry C. Environmental Economics: An Introduction. Boston, MA: McGraw-Hill/Irwin, 2002.