1.
Quito; Edimec; 2000. 61 p.
Monography
in Spanish
| LILACS
| ID: lil-297000
2.
Quito; Edimec; 2000. 83 p. graf, ilus, tab.
Monography
in Spanish
| LILACS
| ID: lil-297007
3.
Quito; Edimec; 2000. 94 p. graf, tab.
Monography
in Spanish
| LILACS
| ID: lil-297008
4.
Quito; Edimec; 2000. 80 p. graf, ilus.
Monography
in Spanish
| LILACS
| ID: lil-297009