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100   $a20090824d1958----km-y0itay50------ba
101   $aeng
102   $aUS
105   $a||||||||001yy
200 1 $aElementary seismology$fCharles F. Richter
210   $aSan Francisco and London$cW. H. Freeman and company$dcopyr. 1958
215   $aVIII, 768 p.$cill.$d23 cm
225 2 $aA series of books in geology
410  0$12001$aA series of books in geology
606 0 $aSismologia
676   $a551.2
700  1$aRICHTER,$bCharles F.$030849
801  0$aIT$bsalbc$gISBD
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996   $aELEMENTARY SEISMOLOGY$9318562
997   $aUNISA