Gaya APA

Lewis, C, S. (2009). The Screwtape Letters ( Surat-Surat Screwtape ) (4). Bandung: Pionir Jaya.

Gaya MLA

Lewis, C., S.. "The Screwtape Letters ( Surat-Surat Screwtape )". 4 Bandung: Pionir Jaya, 2009. Text.