TY  - BOOK
AU  - Yarwood, T. M.
TI  - Intermediate practical physics
U1  - Pg230 
PY  - 1940///
CY  - London
PB  - Macmillan
KW  - Physics General and Mechanics
N1  - Pg mean Physics General & Mechanics Page 457-464 in A to Z Accession Register (Acc. No. Pg1-Pg228) & Page 640 (Acc. No. 224-231)
ER  -