Post, S. G. (2011). The hidden gifts of helping: How the power of giving, compassion, and hope can get us through hard times. Jossey-Bass.
Cita Chicago Style (17a ed.)Post, Stephen Garrard. The Hidden Gifts of Helping: How the Power of Giving, Compassion, and Hope Can Get Us Through Hard Times. San Francisco: Jossey-Bass, 2011.
Cita MLA (8a ed.)Post, Stephen Garrard. The Hidden Gifts of Helping: How the Power of Giving, Compassion, and Hope Can Get Us Through Hard Times. Jossey-Bass, 2011.
Precaución: Estas citas no son 100% exactas.