Casta, A. (2012). Free comic book day: Revivifying comic zest through free heaps and flips. Gala.
Chicago-viite (17. p.)Casta, Airiz. "Free Comic Book Day: Revivifying Comic Zest Through Free Heaps and Flips." Gala 2012.
MLA-viite (9. p.)Casta, Airiz. "Free Comic Book Day: Revivifying Comic Zest Through Free Heaps and Flips." Gala, 2012.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.