TY  - BOOK
AU  - Bruess, Clint E.
AU  - Gay, John E.,
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 23156902
SN  - 2
PY  - 1978///];copyright 1978.46
CY  - New York
PB  - Macmillan
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - School hygiene
N1  - Includes bibliographical references and index; 5
ER  -