Cita APA (7a ed.)

Clark, R. (2003). The essential 55: An award-winning educator's rules for discovering the successful student in every child. Hyperion.

Cita Chicago Style (17a ed.)

Clark, Ron. The Essential 55: An Award-winning Educator's Rules for Discovering the Successful Student in Every Child. New York: Hyperion, 2003.

Cita MLA (8a ed.)

Clark, Ron. The Essential 55: An Award-winning Educator's Rules for Discovering the Successful Student in Every Child. Hyperion, 2003.