Sight-saving class as a mental hygiene measure
By: [by] Catharine A. Flanigan.
Contributors: National Society for the Prevention of Blindness.
Series: Publication / National Society for the Prevention of Blindness -- publication 153.; Publication (National Society for the Prevention of Blindness) -- no. 153.
Publisher: National Society for the Prevention of Blindness
Published: 1934
Place of publication: New York
Language: eng
Number of pages: 12