Studies in illumination : I. Hygienic conditions of illumination in certain post offices, especially relating to visual defects and efficiency.

Bibliographic Details
Corporate Author:	United States. Department of Health, Education, and Welfare
Format:	Government Document eBook
Language:	English
Published:	[Washington] : GPO, 1924.
Subjects:	United States. > Occupational Safety and Health Administration. Eye > Diseases. Labor productivity. New York (State) Electronic books.
Online Access:	Connect to the full text of this electronic document

Description
Item Description:	Includes index. Electronic resource.
Physical Description:	1 online resource (vii+118+illus. pages)