Boletín del Ministerio de Trabajo 

 - Madrid :  [s.n.],  1900-1981. 
 - v. :  ill., maps, plates (part fold.), plans, tables (part fold.) fold. diagrs. ;  25 cm. 
<br/><br/><label>LCCN: </label>unk81015838  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labor policy--Spain--Periodicals.<br/>Labor laws and legislation--Spain--Periodicals.
<br/><br/><label>LC Class. No.: </label>HD8581  / .A22