APA-viite (7. p.)
Westra, E. (2013). Python geospatial development: Learn to build sophisticated mapping applications from scratch using Python tools for geospatial development (2nd ed.). Packt Pub..
Chicago-viite (17. p.)
Westra, Erik. Python Geospatial Development: Learn to Build Sophisticated Mapping Applications from Scratch Using Python Tools for Geospatial Development. 2nd ed. Birmingham: Packt Pub., 2013.
MLA-viite (9. p.)
Westra, Erik. Python Geospatial Development: Learn to Build Sophisticated Mapping Applications from Scratch Using Python Tools for Geospatial Development. 2nd ed. Packt Pub., 2013.
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