000			00476nam a2200157 a 4500
005			20240602103943.0
008			040624s19uu xx 00 eng d
020			_a0127453504
100			_aWelford, W. T.
245			_aThe optics of nonimaging consentrators : _bLight and solar energy / _cW.T. Welford and R. Winston.
260			_aNew York : _bAcademic Press, _cc1978.
300			_axi, 200 p. : ill.
650			_aSolar collectors.
700			_aWinston, R.
942			_2ddc
999			_c83381 _d83381