Los encabezamientos de materia
| Main Author: | |
|---|---|
| Format: | Tesis de licenciatura |
| Published: |
MX
1974
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/20.500.14330/TES01000121217 http://132.248.9.195/ptb2010/anteriores/0121217/Index.html |