The mentally subnormal child :
The mentally subnormal child : report of a Joint Expert Committee convened by WHO, with the participation of United Nations, ILO, and UNESCO [Geneva, 16-21 February 1953]
- Geneva : World Health Organization, 1954.
- 46 p.
- World Health Organization technical report series ; no. 75 .
eng fre.
9241200758
Mental retardation--in infancy and childhood.
WS 107
eng fre.
9241200758
Mental retardation--in infancy and childhood.
WS 107