1.
Rev. Inst. Juan Cesar Garcia
;
2(2): 1-44, jul. 1992. tab
Article
in Spanish
| LILACS
| ID: lil-213677
2.
Quito; CONADE; 2 ed; abr. 1992. 76 p. tab.
Monography
in Spanish
| LILACS
| ID: lil-303251