Songhurst, D. J <br/><br/>
Charging Communication Networks: From Theory to Practice (E Book)  [Elektronisk resurs] 

 -  1999 
<br/><br/> E Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Banking
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Electronic books