Techniques of visual-sensory aids
By: by Lester K. Ade, superintendant of public instruction. Department of public instruction, commonwealth of Pennsylvania, Harrisburg, 1939.
Contributors: Ade, Lester K. 1890-; Klonower, Henry, 1888-; Kirby, C. Valentine 1875-1947.; Fuller, Gertrude B.
Series: Its Bulletin 509
Publisher: Dept. of Public Instruction
Published: 1939
Place of publication: Harrisburg, PA
Language: eng
Number of pages: 62
Subjects: Visual education.
Notes: By Dr. Henry Klonower, Dr. C. Valentine Kirby and Mrs. Gertrude B. Fuller. cf. Foreword.