Cite Them Right 11th edition - Harvard

Erik Westra and Erik Westra (2016) Python Geospatial Development : Develop Sophisticated Mapping Applications From Scratch Using Python 3 Tools for Geospatial Development.

Chicago Manual of Style 17th edition (full note)

Erik Westra, and Erik Westra. Python Geospatial Development : Develop Sophisticated Mapping Applications From Scratch Using Python 3 Tools for Geospatial Development.

American Psychological Association 7th edition

Erik Westra, & Erik Westra. (2016). Python Geospatial Development : Develop Sophisticated Mapping Applications From Scratch Using Python 3 Tools for Geospatial Development.

Modern Language Association 9th edition

Erik Westra, and Erik Westra. Python Geospatial Development : Develop Sophisticated Mapping Applications From Scratch Using Python 3 Tools for Geospatial Development. 2016.

ISO-690 (author-date, Deutsch)

ERIK WESTRA and ERIK WESTRA, 2016. Python Geospatial Development : Develop Sophisticated Mapping Applications From Scratch Using Python 3 Tools for Geospatial Development

Warning: These citations may not always be 100% accurate.