Cite
APA Citation
Graser, A., Mandel, A., Olaya Ferrero, V., Bruy, A., & Mearns, B. (2017). QGIS : becoming a QGIS power user : master data management, visualization, and spatial analysis techniques in QGIS and become a GIS power user. Birmingham, UK : Packt Publishing. http://access.bl.uk/ark:/81055/vdc_100041610815.0x000001