1.
Vet. Méx
; 25(2): 175-6, abr.-jun. 1994. ilus
Article
in Spanish
| LILACS
| ID: lil-149586
2.
Vet. Méx
; 23(4): 367-9, oct.-dic. 1992. ilus
Article
in Spanish
| LILACS
| ID: lil-118393