Clark, R. (2019). The essential 55: An award-winning educator's rules for discovering the successful student in every child (Revised edition.). Hachette Books.
Chicago Style (17th ed.) CitationClark, Ron. The Essential 55: An Award-winning Educator's Rules for Discovering the Successful Student in Every Child. Revised edition. New York: Hachette Books, 2019.
MLA (9th ed.) CitationClark, Ron. The Essential 55: An Award-winning Educator's Rules for Discovering the Successful Student in Every Child. Revised edition. Hachette Books, 2019.
Warning: These citations may not always be 100% accurate.