Aronoff, S. (1991). Geographic information systems: A management perspective. WDL Publications.
Chicago-viite (17. p.)Aronoff, Stanley. Geographic Information Systems: A Management Perspective. Ottawa, Canada: WDL Publications, 1991.
MLA-viite (9. p.)Aronoff, Stanley. Geographic Information Systems: A Management Perspective. WDL Publications, 1991.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.