Gesell, A. Child Development: An introduction to the study of human growth. New York: Harper & Brothers.
Trích dẫn kiểu ChicagoGesell, Arnold. Child Development: An Introduction to the Study of Human Growth. New York: Harper & Brothers.
Deismireacht MLAGesell, Arnold. Child Development: An Introduction to the Study of Human Growth. New York: Harper & Brothers.
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