Bryson, R. A. <br/><br/>
World climate and world food systems III  : the lessons of climatic history 

 - Madison, Wis. :  Institute for Environmental Studies University of Wisconsin,  1974 
 - 17 p.  : ilus. ; gráfs. 
<br/><br/><label>LCCN: </label>25401 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cambios climáticos.<br/>Climatología--Historia.<br/>Cultivos--Rendimiento.