Pledge Humphrey Thomas. <br/><br/>
Science since 1500 :  a short history of mathematics, physics, chemistry and biology / 
[by] H. T. Pledge. 
 - New York :  Harper,  [c1959] 
 - 356 p. 
 - science lib. .
 - science lib. .
<br/><br/><label>Nat. Bib. Agency Control No.: </label>1020643  ChTaNC 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--History.<br/>自然
<br/><br/><label>LC Class. No.: </label>Q125  / .P63 1966 
<br/><br/><label>Dewey Class. No.: </label>509