Bar-Hillel, Yehoshua. <br/><br/>
Scientific thought: Some Underlying concepts methods and Procedures /  

 - Paris :   Mouton/Unesco. 
 - xii, 252p :  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural Science <Scientific thought>
<br/><br/><label>Dewey Class. No.: </label>Ax  / L2