Gaya APA
Ritchie, A., Haas, C. (2008).
Its Time To Sleep, Ypu Crazy Sheep! : Waktunya Tidur, Domba Nakal! .
Jakarta:
.
Gaya MLA
Ritchie, Alison., Haas, Cornelia.
"Its Time To Sleep, Ypu Crazy Sheep! : Waktunya Tidur, Domba Nakal!".
Jakarta:
,
2008.
Text.