Roa Rojas, Hernán, Roa Díaz, Cornelio <br/><br/>
Régimen ambiental.  

 - Bogotá  Ecoe  2009 
<br/><br/><label>ISBN: </label>9789586486101 
<br/><br/><label>Dewey Class. No.: </label>344.046 R628r