Spectral-transmissive properties and use of colored eye-protective glasses
By: by W. W. Coblentz and R. Stair.
Contributors: Stair, Ralph.; United States. National Bureau of Standards.
Series: Circular of the National Bureau of Standards -- C421
Publisher: United States Govt. Print. Off.
Published: 1938
Place of publication: Washington
Language: eng
Number of pages: 28
Subjects: Radiation.; Glass.; Eyeglasses.
Other titles: Colored eye-protection glasses
Notes: "Issued June 1, 1938."

At head of title: U.S. Department of Commerce. National Bureau of Standards.

"References and notes": p. 27-28.