1.
San José; CCSS; abr. 1995. 26 p.
Monography
in Spanish
| LILACS
| ID: lil-257273
2.
San José; CCSS; 1993. 17 p. ilus.
Monography
in Spanish
| LILACS
| ID: lil-144266
3.
San José; CCSS; nov. 1992. 50 p.
Monography
in Spanish
| LILACS
| ID: lil-130227
4.
s.l; CCSS; mayo 1990. 31 p.
Non-conventional
in Spanish
| LILACS
| ID: lil-107576