TY  - BOOK
AU  - Cull, R.G. and Drake, W.A.
TI  - Concepts of sciencel 2 .-0-85226-529-8
SN  - 0-85226-529-8
U1  - 501 Cul/Dra vol 2 
PY  - 1970///
CY  - Wiley eastern limited, New Delhi
ER  -