Report on prices of coal and soft coke and Pricing system for washed coal and washing by-products 

 - Bombay  India         1967 
 - 328p  cm. 
<br/><br/><label>Standard No.: </label>152410 
<br/><br/><label>Source: </label> Reports 
<br/><br/><label>Dewey Class. No.: </label>"X9(F551):762.N66t, K7/GD"