au.\*:("BUR.MINES.PHILIPPINES")
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PHILIPPINE MINERAL PRODUCTION VALUE UP NEARLY 21 PERCENT.1969; MINER. NEWS SERV.; PHL; 1969(6), NUM. 0060, P. 1 A 68Miscellaneous
ANNUAL REPORT OF THE BUREAU OF MINES FOR FISCAL YEAR 1967-1968.sdANNU.REP.BUR.MINES-PHILIPPINES.; , P. 1 A 73Miscellaneous
