O. P Vermani 
Applied chemistry : Theory and Practice 
 - New Delhi  Wiley Easter Ltd  1989 
 - 242p 
O. P Vermani & A. K Narula: Applied chemistry : Theory and Practice.  New Delhi.  Wiley Easter Ltd, 1989. 81-224-0170-8--(540VER)   
ENGLISH 
81-224-0170-8 
540  / VER