000 00261nam a22001097a 4500
003 OSt
008 230827b |||||||| |||| 00| 0 eng d
082 _a621.38154
_bF40P
100 _aFielding, T. J.
245 _aPhotoelectric and Selenium Cells
942 _2ddc
_cBK
999 _c30457
_d30457