=LDR            22        4500
=001  4964
=082  04$a552 PET
=100  1\$aPettijohn, F. J.
=245  10$aSedimentary rocks
=260  \\$aLondon :$bHarper and Row,$c1975
=650  \0$aBooks
=852  \\$bFreeman Library$h552 PET