The psychology of subnormal children,
by Leta S. Hollingworth.
APA Citation
Hollingworth, L. Stetter. (1920). The psychology of subnormal children. New York: Macmillan.
MLA Citation
Hollingworth, Leta Stetter, 1886-1939. The Psychology of Subnormal Children. New York: Macmillan, 1920.
Warning: These citations may not always be complete (especially for serials).