Roberts, Walter Orr <br/><br/>
The climate mandate / 
Walter Orr Roberts, Henry Lansford 
 - San Francisco :  W. H. Freeman,  1979 
 - viii, 197 p. :  ill. ;  24 cm. 
<br/><br/> Includes index 
<br/><br/>Bibliography : p. 190-195 
<br/><br/><label>ISBN: </label>0716710544 0716710552 (pbk.) 
<br/><br/><label>LCCN: </label>78-25677 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Climatic changes--Social aspects<br/>Crops and climate<br/>Demography