APA-čujuhus (7. p.)
Westra, E. (2010). Python geospatial development: Build a complete and sophisticated mapping application from scratch using Python tools for GIS development. Packt Open Source.
Chicago-čujuhus (17. p.)
Westra, Erik. Python Geospatial Development: Build a Complete and Sophisticated Mapping Application from Scratch Using Python Tools for GIS Development. Birmingham, U.K.: Packt Open Source, 2010.
MLA-čujuhus (9. p.)
Westra, Erik. Python Geospatial Development: Build a Complete and Sophisticated Mapping Application from Scratch Using Python Tools for GIS Development. Packt Open Source, 2010.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.