TY  - BOOK
AU  - Black,Newton Henry
AU  - Davis,Harvey Nathaniel
TI  - New practical physics : : fundaumental principles snd application t o daily life / 
U1  - 530 
PY  - 1931///, repr. 1956
CY  - New York : 
PB  - Macmillan, 
KW  - Physics
N1  -  "Published January, 1929. Reprinted June 1929...March 1931."
ER  -