Walker, Warren E., <br/><br/>
Responsible policy modeling / 
Warren E. Walker 
 - 17 pages ;  28 cm. 
 - The Rand paper series;  P-7817-1 .
 - The Rand paper series;  P-7817-1 .
<br/><br/><label>Subjects--Topical Terms: </label><br/> Policy sciences models moral and ethical aspects