APA Style

Gates, Robert M. (2014). Duty : memoirs of a secretary at war . Amerika Serikat: WH Allen.

Chicago Style

Gates, Robert M. Duty : memoirs of a secretary at war. Amerika Serikat: WH Allen, 2014. Text.

MLA Style

Gates, Robert M. Duty : memoirs of a secretary at war. Amerika Serikat: WH Allen, 2014. Text.

Turabian Style

Gates, Robert M. Duty : memoirs of a secretary at war. Amerika Serikat: WH Allen, 2014. Print.