1.
Posadas; s.n; 1990. 33 p. tab. (52963).
Thesis
in Spanish
| BINACIS
| ID: bin-52963
2.
Posadas; s.n; 1990. 33 p. tab.
Thesis
in Spanish
| BINACIS
| ID: biblio-1182790
3.
Posadas; s.n; 1990. 33 p. tab. (58681).
Thesis
in Spanish
| BINACIS
| ID: bin-58681