The psychology of mentally deficient children 
Published: 1906
Place of publication: New York
Language: eng
Number of pages: 111
Subjects: Psychology, Pathological; Children with mental disabilities -- Psychology
Notes: Thesis (Ph. D.)--Columbia university.
Vita.
Published also in Archives of psychology, no. 1, November, 1906. Columbia university contributions to philosophy and psychology, vol. XV, no. 2.