00748nam a2200217Ia 4500 526 526 AR-SjINP 20191021112345.0 190604t1989||||cou||||fr|||||||| 0|eng|d AR-SjINP 550.34 Peterson, Jon IRIS/USGS plans for upgrading the global seismograph network / Jon Peterson and Charles R. Hutt [Denver, Colorado?] U.S. Department of Interior. Geologycal Survey 1989 iii, 42 p. 28 cm. Open-file report no. 89-471 La biblioteca posee 3 ejemplares. Revised feb. 1992, jun 1993, apr 1994. SISMOLOGÍA SISMOLOGÍA--PROGRAMAS--SISTEMAS--EQUIPOS Hutt, Charles R. udc BK 0 0 udc 0 0 MAIN MAIN 2019-10-21 00461e1 550.34 Open 89-471 2019-10-21 1 BK 0 0 udc 0 0 MAIN MAIN 2019-10-21 00462e2 550.34 Open 89-471 2019-10-21 2 BK 0 0 udc 0 0 MAIN MAIN 2019-10-21 00463e3 550.34 Open 89-471 2019-10-21 3 BK