Empleo, horas y salarios en las industrias manufactureras de Puerto Rico = Employment, hours and earnings in the manufacturing industries in Puerto Rico. 

 - San Juan, P. R.  Departamento del Trabajo  19- 
 - v.  ill. 
<br/><br/> Title varies. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labor--Statistics.--Puerto Rico<br/>Wages--Puerto Rico.<br/>Industry--Statistics.--Puerto Rico