Burrus, Thomas L <br/><br/>
Earth in crisis 

 - 2nd ed. 
 - St.Llouis:  C.V. Mosby,  1980. 
 -  xi, 549p. 
<br/><br/> Includes bibliography and index 
<br/><br/><br/>Eng 
<br/><br/><label>ISBN: </label>080160902x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy
<br/><br/><label>Dewey Class. No.: </label>550  / BUE