000 00491 a2200097 4500
020 _a9261019110
920 _a92-61-01911-0
245 0 _aCCITT GAS 5-10 Economic Studies at the National Level in the Field of Telecommunications (1981-1984) :
_b10- A Prelimitary Assessment of the Socio-Economic Implications of Teleprocessing for National Economies at Various Stages of Development /
_c.
710 2 _aInternational Telecommunication Union.
_eWydawca
_4pbl
260 _aGeneva :
_bITU,
_c1984.
300 _a24 s.;
_c30 cm.
999 _c1826
_d1826