Cita APA (7a ed.)

Cutts, A., & Graser, A. (2018). Learn QGIS: Your step-by-step guide to the fundamental of QGIS 3.4 (Fourth edition.). Packt.

Cita Chicago Style (17a ed.)

Cutts, Andrew, y Anita Graser. Learn QGIS: Your Step-by-step Guide to the Fundamental of QGIS 3.4. Fourth edition. Birmingham, England ; Mumbai: Packt, 2018.

Cita MLA (9a ed.)

Cutts, Andrew, y Anita Graser. Learn QGIS: Your Step-by-step Guide to the Fundamental of QGIS 3.4. Fourth edition. Packt, 2018.