APA (7. basım) Alıntı

Helder, C. (2014). The Ultimate book of Influence. Wiley India.

Chicago Style (17. basım) Atıf

Helder, Chris. The Ultimate Book of Influence. New Delhi: Wiley India, 2014.

MLA (9th ed.) Atıf

Helder, Chris. The Ultimate Book of Influence. Wiley India, 2014.