Gaya APA
Koster, A, S., Tate, E.
(2016).
Ariel and the Big Baby
.
Jakarta:
Amy Sky Koster & Elizabeth Tate.
Gaya MLA
Koster, Amy, Sky., Tate, Elizabeth.
"Ariel and the Big Baby".
Jakarta:
Amy Sky Koster & Elizabeth Tate,
2016.
Picture Book.