1.
Cochabamba; s.n; dic. 1985. 61 p. ilus.
Thesis
in Spanish
| LIBOCS, LILACS, LIBOSP
| ID: biblio-1314677
2.
Cochabamba; s.n; dic. 1985. 61 p. ilus.
Thesis
in Spanish
| LIBOCS, LILACS, LIBOE
| ID: biblio-1295243