Gaya APA
Biddulph, Steve. (2004).
The Secret of Happy Children .
Jakarta:
PT Gramedia Pustaka Utama.
Gaya Chicago
Biddulph, Steve.
The Secret of Happy Children.
Jakarta:
PT Gramedia Pustaka Utama,
2004.
Text.
Gaya MLA
Biddulph, Steve.
The Secret of Happy Children.
Jakarta:
PT Gramedia Pustaka Utama,
2004.
Text.
Gaya Turabian
Biddulph, Steve.
The Secret of Happy Children.
Jakarta:
PT Gramedia Pustaka Utama,
2004.
Print.