Cite Them Right 11th edition - Harvard

Vaskaran Sarcar and Vaskaran Sarcar (2016) Java Design Patterns.

Chicago Manual of Style 17th edition (full note)

Vaskaran Sarcar, and Vaskaran Sarcar. Java Design Patterns.

American Psychological Association 7th edition

Vaskaran Sarcar, & Vaskaran Sarcar. (2016). Java Design Patterns.

Modern Language Association 9th edition

Vaskaran Sarcar, and Vaskaran Sarcar. Java Design Patterns. 2016.

ISO-690 (author-date, Deutsch)

VASKARAN SARCAR and VASKARAN SARCAR, 2016. Java Design Patterns

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