APA
Arnold Gesell F. L. I., . (1949). Child development : an introducation to the study of human growth. Harper & Row, New York: .
Chicago
Arnold Gesell Frances L Ilg, . 1949. Child development : an introducation to the study of human growth. Harper & Row, New York: .
Harvard
Arnold Gesell F. L. I., . (1949). Child development : an introducation to the study of human growth. Harper & Row, New York: .
MLA
Arnold Gesell Frances L Ilg, . Child development : an introducation to the study of human growth. Harper & Row, New York: . 1949.