Hanson, Norwood Russel <br/><br/>
Observation and explanation  : a guide to philosophy of science 

 - London  George Allen  1972 
 -  ix,84p. 
<br/><br/><br/>eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science-Philosophy
<br/><br/><label>Dewey Class. No.: </label>501  / HAO