APA (7th ed.) Citation
Gesell, A., & Ilg, F. L. (1946). The Child from five to ten. Harper.
Chicago Style (17th ed.) Citation
Gesell, Arnold, and Frances L. Ilg. The Child from Five to Ten. New York, London: Harper, 1946.
MLA (9th ed.) Citation
Gesell, Arnold, and Frances L. Ilg. The Child from Five to Ten. Harper, 1946.
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