Erdman, Robert Lee.
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL2037727A
- pdbooks.info ID: 166209
Robert Lee. Erdman Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
| ||||||
| Educable retarded children in elementary schools | 1961 | Author | |  | |  |  | 
| |