TY  - BOOK
AU  - Northrup,Edwin F.
ED  - Asutosh Collection (National Library, India)
TI  - Laws of physical science: a reference book 
U1  - 520 
PY  - 1917///
CY  - Philadelphia
PB  - J. B. Lippincott
KW  - Physics
KW  - Physical laws
KW  - Physical Science
N1  - Includes index
ER  -