Cita APA (7th ed.)

Gardner, D. B. (1964). Development in early childhood: The preschool years. Harper & Row.

Cita Chicago (17th ed.)

Gardner, David Bruce. Development in Early Childhood: The Preschool Years. New York: Harper & Row, 1964.

Cita MLA (9th ed.)

Gardner, David Bruce. Development in Early Childhood: The Preschool Years. Harper & Row, 1964.