Russell Bertrand. <br/><br/>
The Scientific outlook / 
Bertrand Russell. 
 - 2nd ed. 
 - London :  Allen and Unwin,  [1949, 1954] 
 - 285 p. 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>1020644  ChTaNC 
<br/><br/><label>Subjects--Topical Terms: </label><br/>自然