American men of sciences; a biographical directory. <br/><br/>
American men of sciences  a biographical directory. 8ed. 

 - 8ed. 
 - Lancaster - EEUU  Science Press  1949 
 - 2836p.  25 cm 
 -   .
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label>--Ciencias--Directorio Biografico--<br/>Ciencias