Nachbin, Leopoldo <br/><br/>
Approximation theory / 
Leopoldo Nachbin 
 - New Jersey :  D. Van Nostrand Company,  1967 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Approximation
<br/><br/><label>Dewey Class. No.: </label>511.4  / NAC