1.
Cochabamba; s.n; 1997. 72 p. graf.
Thesis
in Spanish
| LIBOCS, LILACS, LIBOSP
| ID: biblio-1314921
2.
Cochabamba; s.n; 1997. 72 p. graf.
Thesis
in Spanish
| LIBOCS, LILACS, LIBOE
| ID: biblio-1295807