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200 1 $aGeomagnetism$fby Sydney Chapman and Julius Bartels
210   $aOxford$cAt the Clarendon Press$d1951
215   $a2 v.$cill.$d24 cm
327 1 $a1.: Geomagnetic and related phenomena$a2.: Analysis of the data, and physical theories
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700  1$aChapman,$bSydney$017700
701  1$aBartels,$bJulius$045701
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996   $aGeomagnetism$944563
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