Apell, R. J. (Richard J.)
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL843108A
- pdbooks.info ID: 183712
R. J. (Richard J.) Apell Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
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| Preschool vision: tests, diagnosis, guidance | 1959 | Author | |  | |  |  | 
| |