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003 AR-LpUBP
005 20230815220837.0
007 ta
008 091027s1927 xxu g 000 0 eng d
040 _aAR-LpUBP
_bspa
_cAR-LpUBP
245 1 0 _aInternational radiotelegraph conference of washington
260 _aWashington :
_bGovernment Printing Office,
_c1927.
942 _cBK
999 _c129002
_d129002
988 _c34