LEADER 00000nam 2200193 a 4500 001 0388920 003 UkHlHU 007 t 008 002508 1 1932 000 eng 040 UkHlHU 050 4 BC 131 L6 100 0 Lewis, C.I. 245 00 Symbolic logic. 300 0000p. 700 1 Olaugford, C.H. 946 260 lacks |a 946 260 lacks |b 946 260 lacks |c, 008 has valid date 946 300 data invalid 946 6XX absent
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