Tecnología apropiada para países subdesarrollados
| Format: | Unknown |
|---|---|
| Language: | Spanish |
| Published: |
San Salvador SV:
Universidad Centroamericana José Simeón Cañas,
[s.f.]
|
| Format: | Unknown |
|---|---|
| Language: | Spanish |
| Published: |
San Salvador SV:
Universidad Centroamericana José Simeón Cañas,
[s.f.]
|