TY  - BOOK
AU  - Cheronis,Nicholas D.
AU  - 
TI  - The study of the physical world
U1  - 613.70712 23
PY  - 1958///
CY  - United States : 
PB  - The Riberside , 
KW  - Physical education and training - Study and teaching (Secondary)
N1  - Third edition
ER  -