000			00494nam a2200157Ia 4500
008			240407s9999 xx 000 0 und d
041			_aEnglish
082			_aPL78
100			_aHoustoun , R . A
245		0	_aVision And Colour Vision
260			_aLondon _bLongmans Green And Co _c1932
300			_a238 pages
500			_aPL means Physics Light, Heat and Sound Page No. 465-469 in A-Z Accession Register (Accession No. PL1-PL131)
650			_aPhysics Light, Heat and Sound
942			_cBK
999			_c32588 _d32588