PA-Score software  users manual & tutorial  version 1.0. 

 - Washington  U.S. Environmental Protection Agency  1991. 
 - vi, 59, [10] p.  ill.  28 cm. 
<br/><br/><label>LCCN: </label>doc92000523  
<br/><br/><label>Subjects--Topical Terms: </label><br/>PA-Score (Computer program).<br/>Hazardous wastes--Computer programs.