1.
La Paz; DGCS; ago. 1998. 6 p.
Monography
in Spanish
| LILACS, LIBOCS, LIBOSP
| ID: lil-231775
2.
La Paz; DGC; jun. 1998. 18 p.
Monography
in Spanish
| LILACS, LIBOCS, LIBOSP
| ID: lil-231776