Gaya APA
Cowell, C.
(2010).
How to train your dragon = bagaimana cara melatih nagamu
.
Bandung:
Mizan Fantasi.
Gaya MLA
Cowell, Cressida.
"How to train your dragon = bagaimana cara melatih nagamu".
Bandung:
Mizan Fantasi,
2010.
Buku.