Effects of hookworm disease on the mental and physical development of children.
Strong, Edward K. 1884-1963.
Effects of hookworm disease on the mental and physical development of children. - New York, Rockefeller Foundation, 1916. - 121 p.
Microfilmed for preservation
e 17000062
Hookworm disease.
Child development.
Educational tests and measurements.
RA421 / .R6 no. 3
WC 890 / S923e 1916 Film 3239 no. 5
Effects of hookworm disease on the mental and physical development of children. - New York, Rockefeller Foundation, 1916. - 121 p.
Microfilmed for preservation
e 17000062
Hookworm disease.
Child development.
Educational tests and measurements.
RA421 / .R6 no. 3
WC 890 / S923e 1916 Film 3239 no. 5