APA Style
Bois, William Pene Du. (1975).
The Twenty-One Balloons .
England:
Puffin Books.
Chicago Style
Bois, William Pene Du.
The Twenty-One Balloons.
England:
Puffin Books,
1975.
Book.
MLA Style
Bois, William Pene Du.
The Twenty-One Balloons.
England:
Puffin Books,
1975.
Book.
Turabian Style
Bois, William Pene Du.
The Twenty-One Balloons.
England:
Puffin Books,
1975.
Book.