Light calculations and measurements : an introduction to the system of quantities and units in light-technology and to photometry /
Keitz, H. A. E.
Light calculations and measurements : an introduction to the system of quantities and units in light-technology and to photometry / [by] H.A.E. Keitz. - 2nd rev. ed. - London : Macmillan, [c1971]. - xiii, 430 p. : ill. - Philips technical library .
Photometry.
Light calculations and measurements : an introduction to the system of quantities and units in light-technology and to photometry / [by] H.A.E. Keitz. - 2nd rev. ed. - London : Macmillan, [c1971]. - xiii, 430 p. : ill. - Philips technical library .
Photometry.