Photometric standards and the unit of light /
Jones, Owen C., 1936-
Photometric standards and the unit of light / O. C. Jones and J. S. Preston. - 2nd ed. - London : H.M.S.O., 1969. - 39 p. : ill. ; 25 cm. - National Physical Laboratory. Notes on applied science; no. 24 .
Bibliography: p. 38-39.
0114800103
Photometry.
Electric lighting.
535.22
Photometric standards and the unit of light / O. C. Jones and J. S. Preston. - 2nd ed. - London : H.M.S.O., 1969. - 39 p. : ill. ; 25 cm. - National Physical Laboratory. Notes on applied science; no. 24 .
Bibliography: p. 38-39.
0114800103
Photometry.
Electric lighting.
535.22