The physical efficiency of teachers: an analytical study of some factors effecting the health and physical efficiency of public school teachers/
Carrothers, George Ezra, 1880-.
The physical efficiency of teachers: an analytical study of some factors effecting the health and physical efficiency of public school teachers/ by George Ezra Carrothers. - New York: Columbia University, 1924. - ix, 80 p. : illus. ; 23 cm. - Contributions to education ; no.155. .
Also published as thesis--Columbia University.
0404551556
Teachers--United States.
Occupational diseases.
The physical efficiency of teachers: an analytical study of some factors effecting the health and physical efficiency of public school teachers/ by George Ezra Carrothers. - New York: Columbia University, 1924. - ix, 80 p. : illus. ; 23 cm. - Contributions to education ; no.155. .
Also published as thesis--Columbia University.
0404551556
Teachers--United States.
Occupational diseases.