1.
Asunción; EDIFAO; 1994. 32 p. tab.
Monography
in Spanish
| LILACS, BDNPAR
| ID: lil-321066
2.
Asunción; EDIFAO; 1990. 34 p. ilus.
Monography
in Spanish
| LILACS, BDNPAR
| ID: lil-321080