Lange Oskar <br/><br/>
Introduction to econometrics 
Lange Oskar 
 - PWN  Polish Scientific Publishers          1959 
 - 433p.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:B, J9;K2;1/TD1;1