TY  - BOOK
AU  - Carrothers,George Ezra
TI  - The physical efficiency of teachers: an analytical study of some factors effecting the health and physical efficiency of public school teachers
SN  - 0404551556
PY  - 1924///
CY  - New York
PB  - Columbia University
KW  - Teachers
KW  - United States
KW  - Occupational diseases
N1  - Also published as thesis--Columbia University
ER  -