Principles and methods of wage determination in the coal-mining industry;  an international survey. 

 - Geneva,  1931. 
 - 104 p. incl. tables, forms.  24 cm. 
 - Studies and reports, Series D, Wages and hours of work,  no. 20 .
<br/><br/> At head of title: International Labour Office.  Annex I: "Comparison of average wages in European coal-miners,     1925, 1927 and 1929": p. [87]-93. 
<br/><br/><label>LCCN: </label>l  31000097  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wages.<br/>Coal miners.<br/>Coal mines and mining.
<br/><br/><label>LC Class. No.: </label>HD4813  / .I4 ser. D, no. 20