Environmental Quality Board regulation for the control of atmospheric pollution 
Commonwealth of Puerto Rico, Office of the Governor, Environmental Quality Board. 
 - Puerto Rico  The Board  [197-] 
 - 38 leaves  28 cm. 
<br/><br/> "A legulation for the control of atmospheric pollution, amended version"--Cover. 
<br/><br/><label>Subjects--Corporate Names: </label><br/>Puerto Rico.--Laws, etc. Public policy environmental act. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air--Pollution--Control--Puerto Rico.<br/>Aire--Contaminaci'øn--Control--Puerto Rico.