1.
Oruro; SeLA; ene. 1996. 34 p. ^cuadros.
Monography
in Spanish
| LIBOCS, LIBOSP
| ID: biblio-1313970
2.
Oruro; SeLA; 24 mar. 1995. 115 p. ^cuadros.
Monography
in Spanish
| LIBOCS, LIBOSP
| ID: biblio-1313880
3.
La Paz; SELA; 7 jul. 1994. 18 p.
Monography
in Spanish
| LIBOCS, LIBOSP
| ID: biblio-1313883
4.
La Paz; SeLA; 5 ene. 1993. 47 p. ^cuadros.
Monography
in Spanish
| LIBOCS, LIBOSP
| ID: biblio-1313878