TY  - BOOK
T1  - Light calculations and measurements;an introduction to the system of quantities and units in light-technology and to photometry
DA  - [1971]
CY  - [New York]
AU  - Keitz, H. A. E.
ET  - 2d rev. ed.
CN  - QC391 .K413 1971
CN  - QC391
PB  - St. Martin's Press
PP  - [New York]
LA  - eng
LA  - ger
PY  - [1971]
N1  - Translation of Lichtberechnungen und Lichtmessungen.
ID  - 54622
KW  - Photometry.
TI  - Light calculations and measurements;an introduction to the system of quantities and units in light-technology and to photometry
ER  -