A special study of the incidence of retardation
By: by Louis B. Blan. New York, Teachers College, Columbia University, 1911.
Publisher: AMS Press
Published: 1972
Place of publication: [New York
Language: eng
Number of pages: 111
Subjects: Slow learning children -- Case studies.
Notes: Bibliography: p. 109-111.
Reprint of the 1911 ed., issued in series: Teachers College, Columbia University. Contributions to education, no. 40.
Originally presented as the author's thesis, Columbia.