Sheffield, Charles <br/><br/>
Earth watch :  a survey of the world from space / 
Charles Sheffield 
 - London :  Sidgwick & Jackson,  1981 
 - 160 p. :  ill. ;  31 cm. 
<br/><br/><label>ISBN: </label>0283987375 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth--Photographs from space