एपीए उद्धरण

Douglas, W. J. (1995). Environmental GIS: Applications to industrial facilities. Lewis Publishers.

शिकागो स्टाइल उद्धरण

Douglas, William J. Environmental GIS: Applications to Industrial Facilities. London: Lewis Publishers, 1995.

एमएलए उद्धरण

Douglas, William J. Environmental GIS: Applications to Industrial Facilities. Lewis Publishers, 1995.