APA (7e ed.) Bronvermelding

Harvard University. Laboratory for Computer Graphics and Spatial Analysis. (1979). Mapping software and cartographic data bases. Harvard University, Laboratory for Computer Graphics & Spatial Analysis.

Chicago (17e ed.) Bronvermelding

Harvard University. Laboratory for Computer Graphics and Spatial Analysis. Mapping Software and Cartographic Data Bases. Cambridge, Mass.: Harvard University, Laboratory for Computer Graphics & Spatial Analysis, 1979.

MLA (9e ed.) Bronvermelding

Harvard University. Laboratory for Computer Graphics and Spatial Analysis. Mapping Software and Cartographic Data Bases. Harvard University, Laboratory for Computer Graphics & Spatial Analysis, 1979.