International telecommunication regulations : final acts of the world administrative telegraph and telephone conference: Melbourne, 1988: (WATTC-88)

WATTC-88, Melbourne, 1988; UIT

Geneva: UIT, 1989

VI, 99 p. ; 21 cm

92-61-03921-9

Vária

Conferências internacionais; Telecomunicações

1989

Material Textual Impresso

ENG