Greenwood, N.H. <br/><br/>
Human environment and natural systems 
/ by N.H. Greenwood and J.M.B. Edwards 
 - 2nd ed. 
 - California:   Wadsworth Publishing Company, Inc.,   1979. 
 - xii, 548p. 
<br/><br/><label>ISBN: </label>0878721681 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human population<br/>Renewable fuels<br/>Sociology<br/>Solid wastes
<br/><br/><label>Dewey Class. No.: </label>301.31  / GRE/H