Gaya APA
Hapka, C. et al
(2017).
Elena dan Rahasia Avalor
.
Jakarta:
Craig Gerber, Catherine Hapka & Grace Lee.
Gaya MLA
Hapka, Catherine. et al.
"Elena dan Rahasia Avalor".
Jakarta:
Craig Gerber, Catherine Hapka & Grace Lee,
2017.
Picture Book.