Calder, Ritchie,  1906-1982 <br/><br/>
Men against the desert / 
Ritchie Calder 
 - London :  Allen,  c1951 
 - 186 p. ;  22 cm. 
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reclamation of land. --Africa, North
<br/><br/><label>Dewey Class. No.: </label>631.617  / CAM 1951