1. The intelligence quotient and the physical quotient;Davenport;Hum Biol,1930
2. The physical development of mongols;Dutton;Arch Dis Childh,1959
3. The size of mental defective boys;Dutton;Arch Dis Childh,1959
4. The physical growth of mentally deficient boys;Flory;Monogr Soc Res Child Devel,1936