Cite Them Right 11th edition - Harvard

Geertjan Wielenga and Geertjan Wielenga (2015) Beginning Net Beans IDE : For Java Developers.

Chicago Manual of Style 17th edition (full note)

Geertjan Wielenga, and Geertjan Wielenga. Beginning Net Beans IDE : For Java Developers.

American Psychological Association 7th edition

Geertjan Wielenga, & Geertjan Wielenga. (2015). Beginning Net Beans IDE : For Java Developers.

Modern Language Association 9th edition

Geertjan Wielenga, and Geertjan Wielenga. Beginning Net Beans IDE : For Java Developers. 2015.

ISO-690 (author-date, Deutsch)

GEERTJAN WIELENGA and GEERTJAN WIELENGA, 2015. Beginning Net Beans IDE : For Java Developers

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