APA Style
Martin, Ann M. (1989).
The Baby-Sitters Club #21: Mallory and the Trouble with Twins .
New York ::
Scholastic Inc..
Chicago Style
Martin, Ann M.
The Baby-Sitters Club #21: Mallory and the Trouble with Twins.
New York ::
Scholastic Inc.,
1989.
Text.
MLA Style
Martin, Ann M.
The Baby-Sitters Club #21: Mallory and the Trouble with Twins.
New York ::
Scholastic Inc.,
1989.
Text.
Turabian Style
Martin, Ann M.
The Baby-Sitters Club #21: Mallory and the Trouble with Twins.
New York ::
Scholastic Inc.,
1989.
Print.