Ryshkewitsch, George E. <br/><br/>
Chemical bonding and the geometry of molecules 
by George E Ryshkewitsch 
 - Newyork  Van Nostrand Reinhold  c1946 
 - ix, 116p.;  20cm.- 
<br/><br/><label>Dewey Class. No.: </label>541.  / 224 RYS