Long, Leo Ray De
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL2454563A
- pdbooks.info ID: 69354
Leo Ray De Long Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
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| City school institutes in Pennsylvania: a study of the development and administration of the program of in-service education of teachers with proposals for improved state control and local administration | 1930 | Author | |  | |  | | ||