Montgomery, G. E., & Schuch, H. C. (1993). GIS data conversion handbook. GIS World, Inc..
Chicago-čujuhus (17. p.)Montgomery, Glenn E., juo Harold C. Schuch. GIS Data Conversion Handbook. Fort Collins, Colo.: GIS World, Inc., 1993.
MLA-čujuhus (9. p.)Montgomery, Glenn E., juo Harold C. Schuch. GIS Data Conversion Handbook. GIS World, Inc., 1993.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.