Dwyer,William O and Leeming, Frank C. <br/><br/>
Earth's eleventh hour 
Dwyer,William O and Leeming, Frank C. 
 - Boston  Allyn  1995 
<br/><br/><label>ISBN: </label>9780205160020 
<br/><br/><label>Dewey Class. No.: </label>363.7  / DWY.E