000 00387pam a2200157a 44500
082 _a562
_bT918p2
100 _aTwenhofel, William Henry
245 1 _aPRINCIPLES OF INVERTEBRATE PALEONTOLOGY
250 _a2nd
260 _aN. Y.
_bMcgraw-Hill
_c1953
300 _a816
650 _aInvertebrates, Fossils
700 _aShrock, Robert Rakes
964 _gCIRC
997 _a74150 C
999 _c440031
_d440031