Viorst, J., & Chorao, K. (1973). My mama says there aren't any zombies, ghosts, vampires, creatures, demons, monsters, fiends, goblins, or things ([1st ed.].). Atheneum.
Cita Chicago Style (17a ed.)Viorst, Judith, y Kay Chorao. My Mama Says There Aren't Any Zombies, Ghosts, Vampires, Creatures, Demons, Monsters, Fiends, Goblins, or Things. [1st ed.]. New York: Atheneum, 1973.
Cita MLA (8a ed.)Viorst, Judith, y Kay Chorao. My Mama Says There Aren't Any Zombies, Ghosts, Vampires, Creatures, Demons, Monsters, Fiends, Goblins, or Things. [1st ed.]. Atheneum, 1973.
Precaución: Estas citas no son 100% exactas.