000			00554cam a2200205 i 4500
999			_c74922 _d74922
003			OSt
005			20190926172358.0
008			750114s1974 enka b 001 0 eng
040			_aDLC _cOSt _dOSt _beng
082	0	0	_a535 / H818t
100			_aHoustoun, R. A. _9267011
245	1	0	_aA treatise on light. / _cR. A. Houstoun.
250			_a7th ed.
260			_aNew York : _bLongmans, _c1949.
300			_axi 528 p. : _bill. ; _c22 cm.
500			_aIncludes index.
508			_a324
650		0	_aLight & related radiations. _9267012
942			_2ddc _cBK