LEADER 00000nam 2200181 a 4500 001 0446982 003 UkHlHU 007 t 008 002710 1 1949 000 eng 040 UkHlHU 050 4 QC 631 M3 100 0 Martin, T. 245 00 Faraday's discovery of electro-magnetic induction. 300 0000p. 700 0 Martin, Thomas 18. 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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