LEADER 00000nam 2200217 a 4500 001 0524584 003 UkHlHU 007 t 008 002101 2 1942 000 eng 040 UkHlHU 050 4 QE 434 R7 100 0 Rogers, Austin Flint. 245 00 Optical mineralogy. 250 2nd edition. 260 New York :|bMcGraw-Hill,|c1942. 300 390p. 650 0 Petrography|xPetrology|xRocks. 700 0 Paul, Francis. 946 650 |a & |x subfields only. In at least one case all subfields comprise single words only -- Check for Geac subject headings 946 650 has non-LCSH elements -- Check for Geac subject headings
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