Gaya APA

Redfield, J. (2011). The Twelfth Insight: The Hour of Decision (Edisi Pertama). Jakarta: Gramedia Pustaka Utama.

Gaya MLA

Redfield, James. "The Twelfth Insight: The Hour of Decision". Edisi Pertama Jakarta: Gramedia Pustaka Utama, 2011. Text.