Greitens, E. (2012). The warrior's heart: Becoming a man of compassion and courage. Houghton Mifflin Harcourt.
Cita Chicago Style (17a ed.)Greitens, Eric. The Warrior's Heart: Becoming a Man of Compassion and Courage. Boston: Houghton Mifflin Harcourt, 2012.
Cita MLA (8a ed.)Greitens, Eric. The Warrior's Heart: Becoming a Man of Compassion and Courage. Houghton Mifflin Harcourt, 2012.
Precaución: Estas citas no son 100% exactas.