TY  - BOOK
AU  - Andrews,P.E 
TI  - An introduction to science
U1  - Pg155 
PY  - 1937///
CY  - London
PB  - Longmans green and co
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  -