Parragon Publishing. (2007). My First Encyclopedia (Children's Reference). Parragon Publishing.
Cita Chicago Style (17a ed.)Parragon Publishing. My First Encyclopedia (Children's Reference). Parragon Publishing, 2007.
Cita MLA (9a ed.)Parragon Publishing. My First Encyclopedia (Children's Reference). Parragon Publishing, 2007.
Precaución: Estas citas no son 100% exactas.