Long,Denis D <br/><br/>
Macro Systems in the social enviroment / 
Denis D. Long 
 - Chicago :  F.E.Peacock,  1997       
 - 255 p. 
<br/><br/><label>ISBN: </label>0875814093 
<br/><br/><label>LC Class. No.: </label>HV 41 L848m 1994