Richardson, Helen Mary, 1895–
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL2308445A
- pdbooks.info ID: 76765
Helen Mary Richardson Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
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| The growth of adaptive behavior in infants: an experimental study at seven age levels | 1932 | Author | |  | |  | | ||