CCITT GAS 5-8 Economic Studies at the National Level in the Field of Telecommunications (1981-1984) :   8- Optimum Allocation and Use of Scarce Resources in Urban or Rural Areas of a Country /  

 - Geneva :   ITU,   1984. 
 - 46 s.:   il.;   30 cm. 
<br/><br/><label>ISBN: </label>9261018939