APA Style
Butterworth, Nick. (2010).
Percy the Park Keeper .
Great Britain:
HarperCollins Publisher.
Chicago Style
Butterworth, Nick.
Percy the Park Keeper.
Great Britain:
HarperCollins Publisher,
2010.
Buku SMP Athalia.
MLA Style
Butterworth, Nick.
Percy the Park Keeper.
Great Britain:
HarperCollins Publisher,
2010.
Buku SMP Athalia.
Turabian Style
Butterworth, Nick.
Percy the Park Keeper.
Great Britain:
HarperCollins Publisher,
2010.
Buku SMP Athalia.