Manual for the illuminating engineer on large size perfect diffusors
Zijl, H.
Manual for the illuminating engineer on large size perfect diffusors - - Eindhoven Philips Industries, 1951 - 196 p. 23 cm - .
0
Lighting
628.9 Zij
Manual for the illuminating engineer on large size perfect diffusors - - Eindhoven Philips Industries, 1951 - 196 p. 23 cm - .
0
Lighting
628.9 Zij