Montgomery, G. E., & Schuch, H. C. (1993). GIS data conversion handbook. GIS World.
Cita Chicago (17th ed.)Montgomery, Glenn E., i Harold C. Schuch. GIS Data Conversion Handbook. Ft. Collins, CO: GIS World, 1993.
Cita MLA (8th ed.)Montgomery, Glenn E., i Harold C. Schuch. GIS Data Conversion Handbook. GIS World, 1993.
Atenció: Aquestes cites poden no estar 100% correctes.