Busson, Bernard; Leroy, Gerard <br/><br/>
Last secrets of the earth / 
Busson, Bernard; Leroy, Gerard 
 -  G P Putnam's Sons, London,  1956 
 - p. ;  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sciences of earth & other worlds
<br/><br/><label>Dewey Class. No.: </label>550 BUS-L