TY  - BOOK
AU  - Childs [w H J], 
TI  - Physical Constants
U1  - 530.8 
PY  - 1900///
CY  - Kottayam
PB  - NATIONAL BOOKSTALL
KW  - General Stack
KW  - Natural science and mathematics
KW  - PhysicsNatural history
KW  - Generalia
ER  -