00628nam 2200181z- 450 9910689379703321(CKB)5470000002331651(EXLCZ)99547000000233165120230503cuuuuuuuu -u- -eng1992 World Administrative Radio Conference : issues for U.S. international spectrum policyWashington, DC0-16-035964-3 1992 World Administrative Radio Conference BOOK99106893797033211992 World Administrative Radio Conference : issues for U.S. international spectrum policy3141151UNINA