Hours of work in coal mines :  report II : second item on the agenda / 
Coal Mines Committee 4th session held at Geneva in 1951 
 - Geneva :  International Lobour Office  1951 
 - [iii], 46 p. ;  24 cm. 
<br/><br/><label>ISBN: </label> Rs. 1.00 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Coal mines and mining<br/>Coal miners<br/>Hours of labour
<br/><br/><label>Dewey Class. No.: </label>331.762233