000 003210000a22001450004500
008 140223b1939 xxu||||| |||| 00| 0 eng d
041 _aENG
080 _aHg1 G9
082 _aHg1 G9
100 _aMason (S L)
700 _aMather (K F)
245 _aSource book in geology
260 _c1939
650 _aGeology
999 _c155302
_d155302