Gaya APA

Gowell, C. (2019). Penulis How To Train Your Dragon The Wizards Of Once : penyihir pada zaman dahulu kala (Cet. 1). Jakarta: Mahaka Publishing.

Gaya MLA

Gowell, Cressida. "Penulis How To Train Your Dragon The Wizards Of Once : penyihir pada zaman dahulu kala". Cet. 1 Jakarta: Mahaka Publishing, 2019. Text.