Gaya APA

Williams, J, W. (2019). Dark Psychology: The Practical Uses and Best Defenses of Psychological Warfare in Everyday Life (Revised & Updated Second Edition). Amerika Serikat: PT Gramedia Pustaka Utama.

Gaya MLA

Williams, James, W.. "Dark Psychology: The Practical Uses and Best Defenses of Psychological Warfare in Everyday Life". Revised & Updated Second Edition Amerika Serikat: PT Gramedia Pustaka Utama, 2019. Text.