000			00330nam a22001457a 4500
008			230907b ||||| |||| 00| 0 eng d
020			_a674605258
041			_aeng
080			_2FIRST PUBLISHED 1970 _a521
082			_a521RON
100			_a19
101			_aASTRO
245			_aTHE NATURE OF LIGHT _cRONCHI.V
942			_2udc _cBK
999			_c60276 _d60276