Description
Raytech Equipment Company, USA, The Story of Flourescence, An explanation of ultraviolet fluorescence with experiments an a descriptive list of flourescent minerals, 1965, 60 p., with illustration #64329
Raytech Equipment Company, USA, The Story of Flourescence, An explanation of ultraviolet fluorescence with experiments an a descriptive list of flourescent minerals, 1965, 60 p., with illustration #64329