APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

Douglas, William J. Environmental GIS, Application to Industrial Facilities. Boca Raton: Lewis Publishers, 1995.

MLA (9e ed.) Bronvermelding

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