Manual for the pointer method of vision training
Subtitle: as used with the Keystone visual-skills-training series
By: by A. Sutton Nichols.
Contributors: Keystone View Company.
Publisher: Keystone view company
Published: 1944
Place of publication: Meadville, Pa
Language: eng
Number of pages: 38
Other titles: Pointer method of vision training
Notes: Reproduced from type-written copy.