Avi. (2006). Crispin: At the edge of the world. Hyperion Books for Children.
Cita Chicago Style (17a ed.)Avi. Crispin: At the Edge of the World. New York: Hyperion Books for Children, 2006.
Cita MLA (8a ed.)Avi. Crispin: At the Edge of the World. Hyperion Books for Children, 2006.
Precaución: Estas citas no son 100% exactas.