LEADER 01803oam 2200505 450 001 9910711535003321 005 20181114100613.0 035 $a(CKB)5470000002484703 035 $a(OCoLC)953211563 035 $a(OCoLC)995470000002484703 035 $a(EXLCZ)995470000002484703 100 $a20160707d1980 ua 0 101 0 $aeng 135 $aurbn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aPuerto Rico seismic network data report of earthquakes located by the programs HYPO71 and HYPOELLIPSE, July 1, 1975-December 31, 1977 /$fby R.L. Dart [and threee others] 210 1$a[Reston, Virginia] :$cUnited States Department of the Interior, Geological Survey,$d1980. 215 $a1 online resource (iii, 43 pages) $cillustrations 225 1 $aGeological Survey circular ;$v821 300 $aTitle from title screen (viewed July 9,2015). 320 $aIncludes bibliographical references (page 5). 606 $aSeismological stations$zPuerto Rico$vTables 606 $aSeismology$zPuerto Rico$vTables 606 $aSeismological stations$2fast 606 $aSeismology$2fast 607 $aPuerto Rico$2fast 608 $aTables.$2fast 615 0$aSeismological stations 615 0$aSeismology 615 7$aSeismological stations. 615 7$aSeismology. 700 $aDart$b R. L$g(Richard L.),$01395308 712 02$aGeological Survey (U.S.), 801 0$bCOP 801 1$bCOP 801 2$bOCLCO 801 2$bOCLCF 801 2$bOCLCA 801 2$bGPO 906 $aBOOK 912 $a9910711535003321 996 $aPuerto Rico seismic network data report of earthquakes located by the programs HYPO71 and HYPOELLIPSE, July 1, 1975-December 31, 1977$93491747 997 $aUNINA