Roy, Mcweeny . <br/><br/>
Coulson`s valence /  
Mcweeny Roy. 
 - NULL ;   NULL. 
<br/><br/>NULL 
<br/><br/><label>ISBN: </label> NULL (Hb) 
<br/><br/><label>Subjects--Index Terms: </label>VALENCES 
<br/><br/><label>Dewey Class. No.: </label>541.224  / ROY/C