Mortreux, O.
Nationality: Undetermined, possibly 
(France)
Identities and Authority Control
- pdbooks.info ID: 26845
O. Mortreux Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
 |  |  | 
| ||||||
| French elementary schools: official courses of study | 1927 | Author | |  |  | | | ||
| Programmes officiels des écoles primaires élémentaires, 1923 | 1924 | Author | |  | | | | ||