APA (7th ed.) Citation
Gardner, H. (1991). The unschooled mind: How children think and how schools should teach. BasicBooks.
Chicago Style (17th ed.) Citation
Gardner, Howard. The Unschooled Mind: How Children Think and How Schools Should Teach. New York: BasicBooks, 1991.
MLA (9th ed.) Citation
Gardner, Howard. The Unschooled Mind: How Children Think and How Schools Should Teach. BasicBooks, 1991.
Warning: These citations may not always be 100% accurate.