| Reference | {Deposit:: BURN,R.G.THE PIS-PIS GOLD MINING DISTRICT OF N.E NICARAGUA.M}{Deposit:: MAGAZINE.MARCH 1969.VOL.120.NO.3.PP.169-175.}{Deposit:: METALS SOURCEBOOK.ITEM B2850.MAY 20,1974.}{Deposit:: 1975/76 E/MJ INT.DIR.OF MINING&MINERAL PROCESSING UNITS.MCGR}{Deposit:: 1976.P.251.}{Deposit:: WORLD MINES REGISTER 1976/77.WORLD MINING.MILLER-FREEMAN PUB}{Deposit:: TIONS.S.F.CALIF.1976.P.122} |