Nielsen, Harry A., <br/><br/>
Methods of natural science; an introduction. 

 - 70 páginas 
 - Prentice-hall fundamentals of logic series .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ciencia--Metodología
<br/><br/><label>LC Class. No.: </label>Q175  / N44