Andrews, A. (2009). The butterfly effect: How your life matters. Simple Truths.
Cita Chicago Style (17a ed.)Andrews, Andy. The Butterfly Effect: How Your Life Matters. Naperville, Ill.: Simple Truths, 2009.
Cita MLA (8a ed.)Andrews, Andy. The Butterfly Effect: How Your Life Matters. Simple Truths, 2009.
Precaución: Estas citas no son 100% exactas.