1.
Asunción; Centro de Estudios Rurales Interdisciplinarios; jul. 1993. 172 p.
Monography
in Spanish
| LILACS, BDNPAR
| ID: lil-147225
2.
Asunciòn; Centro de Estudios Rurales Interdisciplinarios; 1993. 172 p.
Monography
in Spanish
| LILACS, BDNPAR
| ID: lil-244080