Leaders in American science / 
editor in chief : Robert C. Cook ; associate editor Margi McLean McDuff. 
 - 7th ed. 
 - volumen :  ilustraciones 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Científicos--Biografías.
<br/><br/><label>Dewey Class. No.: </label>925  / L434 1966-67