APA (7th ed.) Citation

Klemens, B. (2015). 21st century C (2nd ed.). O'Reilly Media, Inc..

Chicago Style (17th ed.) Citation

Klemens, Ben. 21st Century C. 2nd ed. Beijing: O'Reilly Media, Inc., 2015.

MLA (9th ed.) Citation

Klemens, Ben. 21st Century C. 2nd ed. O'Reilly Media, Inc., 2015.