TY  - BOOK
AU  - Groh, Heinrich ,
TI  - Explosion protection : : electrical apparatus and systems for chemical plants oil and gas industry coal mining / 
SN  - 9780750647779
U1  - 628.922 
PY  - 2004///
CY  - Oxford
PB  - Elsevier
KW  - Sanitary & municipal engineering
ER  -