TY  - BOOK
AU  - Downie, N. A.
TI  - Industrial Gases 
SN  - 0751403520
U1  - 665.7 
PY  - 1997///
CY  - London : 
PB  - Blackie Academic and Professional, 
KW  - Gases
N1  - NY
UR  - https://eaklibrary.neduet.edu.pk:8443/catalog/bk/books/toc/0-7514-0352-0.pdf
ER  -