Parragon Publishing. (2007). My First Encyclopedia (Children's Reference). Parragon Publishing.
Chicago-viite (17. p.)Parragon Publishing. My First Encyclopedia (Children's Reference). Parragon Publishing, 2007.
MLA-viite (9. p.)Parragon Publishing. My First Encyclopedia (Children's Reference). Parragon Publishing, 2007.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.