Manual for conservation of vision classes
Subtitle: a manual to assist in the establishing and conduct of classes for conservation of vision
By: by Winifred Hathaway ...
Series: National committee for the prevention of blindness.; Publications, no. 18
Publisher: [National committee for the prevention of blindness, inc.]
Published: 1919
Place of publication: New York city
Language: eng
Number of pages: 108
Subjects: Eye -- Care and hygiene.
Other titles: Conservation of vision classes, Manual for.