U.S. earthquake observatories :  recommendations for a new national network / 
Panel on National, Regional, and Local Seismograph Networks, Committee on Seismology, Assembly of Mathematical and Physical Sciences, National Research Council 
 - xvii, 122 páginas 
<br/><br/><label>ISBN: </label>0309031311  (rustica) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sismología--Observatorios--Estados Unidos
<br/><br/><label>LC Class. No.: </label>QE540.U6  / A77