00586cam a22001574a 4500 0 0 0 0 LCC LCC 2019-04-16 Pak Book Corporation 5990.68 0 543.55 JOH 38459 2019-04-16 00:00:00 1 Riphah international university 2019-04-16 BK 24413 24413 9780750307543 (hb) 0750307544 (hb) 543.55 JOH Johnston, Sean F A history of light and colour measurement science in the shadows Bristol Institute of Physics Publishing 2001 xi, 281 p. : ill. ; 24 cm. Includes bibliography and index. Colour measurement Physics Radiation-Measurement Physical photometry History-Light Radiant heat Radiometry Light RICAS BK