LEADER 00000nam 2200181 a 4500 001 0648763 003 UkHlHU 007 t 008 002405 2 1968 000 eng 040 UkHlHU 050 4 QC 358 W5 100 1 Wheadon, R.A. 245 14 The principles of light and optics. 260 Longmans,|c1968. 300 253p. 946 020 absent -- ISBN check required 946 260 lacks |b 946 6XX absent
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