APA
Om Books Editorial Team, . (2021). Encyclopedia: Dinosaurs When?. : Om Books International.
Chicago
Om Books Editorial Team, . 2021. Encyclopedia: Dinosaurs When?. : Om Books International.
Harvard
Om Books Editorial Team, . (2021). Encyclopedia: Dinosaurs When?. : Om Books International.
MLA
Om Books Editorial Team, . Encyclopedia: Dinosaurs When?. : Om Books International. 2021.