Lighting of post offices
Subtitle: summary of a report
By: made by the Office of Industrial Hygiene of the U.S. Public Health Service at the request of Postmaster General Hubert Work, 1922
Publisher: U.S.] G.P.O.
Published: 1923
Place of publication: Washington, D.C
Language: eng
Subjects: Post office buildings; Lighting
Notes: At head of title: Post Office Department.