An analysis of age-progress curves as related to the mental growth curve
Subtitle: a study of vocabulary
By: by Roy M. Hamlin ...
Series: Archives of psychology -- no. 293
Publisher: Agonia
Published: 1944
Place of publication: New York
Language: eng
Number of pages: 37
Subjects: Psychological tests; Age; Vocabulary
Notes: Vita.

Thesis (PH. D.)--Columbia university, 1944.

Bibliography: p. 36-37.