APA (7th ed.) Citation

Martin, A. M. (1991). Karen's in love: Little Sister # 15. Scholastic Inc..

Chicago Style (17th ed.) Citation

Martin, Ann M. Karen's in Love: Little Sister # 15. New York: Scholastic Inc., 1991.

MLA (9th ed.) Citation

Martin, Ann M. Karen's in Love: Little Sister # 15. Scholastic Inc., 1991.

Warning: These citations may not always be 100% accurate.