TY  - BOOK
AU  - ANNIS, F.
TI  - THE NEW PRACTICAL PHYSICS
U1  - Pg126 
PY  - 1931///
CY  - LONDON 
PB  - THE GREGG PUBLISHING COMPANY LTD
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  -