APA Style
Pène du Bois, William,. (1986).
twenty-one balloons .
nyu:
.
Chicago Style
Pène du Bois, William,.
twenty-one balloons.
nyu:
,
1986.
print.
MLA Style
Pène du Bois, William,.
twenty-one balloons.
nyu:
,
1986.
print.
Turabian Style
Pène du Bois, William,.
twenty-one balloons.
nyu:
,
1986.
print.