1.
s.l; CCSS; jun. 1992. 35 p.
Monography
in Spanish
| LILACS
| ID: lil-110069
2.
s.l; CCSS; feb. 1992. 61 p.
Monography
in Spanish
| LILACS
| ID: lil-110109
3.
s.l; CCSS; 1992. 12 p. (Materiales educativos, sistemas locales de salud).
Monography
in Spanish
| LILACS
| ID: lil-110103