Hickel Walter J. <br/><br/>
Water pollution control act 
/por Walter J. Hickel 
 - [Washington, DC] :  U.S. Departament of the Interior,  1970 
 - 62 p. 
<br/><br/><label>LCCN: </label>100009 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agua--Calidad.<br/>Agua--Contaminacion--Leyes.<br/>Aire--Contaminacion--Leyes.