Hooven, F. V. (2007). Valentine's The spy who came out: Valentine. Avenue.
Chicago-viite (17. p.)Hooven, F. Valentine. Valentine's The Spy Who Came Out: Valentine. Seattle, Wash.: Avenue, 2007.
MLA-viite (8. p.)Hooven, F. Valentine. Valentine's The Spy Who Came Out: Valentine. Avenue, 2007.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.