1.
La Paz; BID; ago. 1995. 134 p. ^cuadros.
Monography
in Spanish
| LIBOCS, LIBOSP
| ID: biblio-1313899
2.
La Paz; GTZ; ago. 1995. 120 p. ^cuadros.
Monography
in Spanish
| LIBOCS, LIBOSP
| ID: biblio-1313902