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