*0011515308
*008861216s1986    xx#           000 0 eng
*019  $bk
*08230$a551.73
*100  $aBergström, Stig M.$_148618900
*245  $aThe graptolite correlation of the North American Upper Ordovician standard$cStig M. Bergström and Charles E. Mitchell
*300  $aS. [247]-266 : ill.
*700  $aMitchell, Charles E.$_139277800
*773  $tLethaia$gVol. 19, no. 3 (1986)$x0024-1164$w(NO-LaBS)5212(tnr)
*8564 $uhttps://doi.org/10.1111/j.1502-3931.1986.tb00739.x
*999  $z8600083694$anorart:8600083694
^