00577nam a22001697i 4500001001000000005001700010008004100027020001500068082001900083100001900102245002800121260005200149300001700201650005100218999001500269952012300284SXC00578120260819093407.0260101s1963    ii            000 0 eng d  a0122181018  a535 DIT-L2222  aDitchburn, R W10aLight /cDitchburn, R W  abEnglish Language Book Society, England,c1963  ap. ;c22 cm. 0aLight & paraphotic phenomena (Optics); Physics  c4920d4920  00102ddc4070alibraryblibrarycPHYSICSd2026-08-19i5781l0o535 DIT-L2p5781r2026-08-19 09:34:07w2026-08-19yBK