APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (9:e uppl.)

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