1.
s.l; University of the West Indies, (Mona). Institute of Social and Economic Research; Feb. 1988. iv,30 p.
Monography
in English
| LILACS
| ID: lil-142898
2.
Washington, D.C; Organización Panamericana de la Salud; 1988. 123 p. (DRC/HSP/RG/CAR/86-095).
Monography
in English
| LILACS
| ID: lil-367145