TY  - BOOK
AU  - ARMITAGE,E
TI  - HIGHER SCHOOL CERTIFICATE PRICTICAL PYSICS
U1  - Pg175 
PY  - 1939///
CY  - LONDON
PB  - JOHN MURRY ALBEMARLE STREET W
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  -