Kingma, Bruce R. <br/><br/>
Economics of information:  guiide to economic and cost-benefit analysis. / 
by Bruce R. Kingma 
 - 2nd ed. 
 - Colorado :  Rain Tree,  2005. 
<br/><br/><label>ISBN: </label>1563088169 
<br/><br/><label>Subjects--Index Terms: </label>Information Science - Economic Aspect