APA (7th ed.) Citation

Urban and Regional Information Systems Association & PlanGraphics, Inc. GIS database concepts: A tutorial. The Urban and Regional Information Systems Association, c1999.

Chicago Style (17th ed.) Citation

Urban and Regional Information Systems Association and Inc PlanGraphics. GIS Database Concepts: A Tutorial. Park Ridge, IL: The Urban and Regional Information Systems Association, c1999.

MLA (9th ed.) Citation

Urban and Regional Information Systems Association and Inc PlanGraphics. GIS Database Concepts: A Tutorial. The Urban and Regional Information Systems Association, c1999.