Conservation education
Edición de la obra Conservation education
| Autor | Federal Writers' Project (Pa.) |
|---|---|
| Editorial | Department of Public Instruction, Commonwealth of Pennsylvania |
| Fecha de publicación | 1939 |
| Lugar | Harrisburg |
| Idioma | inglés |
| Páginas | 108 |
| OCLC | 15621479 |
| Serie | Bulletin (Pennsylvania. Dept. of Public Instruction) -- 214 · Bulletin (Pennsylvania. Department of Public Instruction) -- 214 |
| Número de Cutter | C755 |