Nijkamp Peter Ed. <br/><br/>
Measuring the unmeasurable 

 - Dordrecht  Martinus           1985 
 - ix, 713p.  cm. 
 - NATO ASI series D; 22 .
<br/><br/><label>Standard No.: </label>25570 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B281800bsigma, M5