Health control in mercantile life
Subtitle: a problem of conserving human energy
By: by Arthur Brewster Emmons, 2d ...
Publisher: Harper & brothers
Published: 1926
Place of publication: New York and London
Language: eng
Number of pages: 234
Subjects: Working class -- Medical care.; Department stores.
Notes: "Bibliography on eyesight and lighting" and "Key to the bibliography of advance in ventilation": p. 73-75.