APA Style
Ritchie, A. (2008).
It's Time to Sleep, You Crazy Sheep! = Waktunya Tidur Domba Nakal! .
Jakarta:
Erlangga For Kids.
MLA Style
Ritchie, Alison.
"It's Time to Sleep, You Crazy Sheep! = Waktunya Tidur Domba Nakal!".
Jakarta:
Erlangga For Kids,
2008.
Printed Book.