1.
Geneva; WHO; 1987. 56 p. (WHO Offset Publication, 97).
Monography
in English
| MINSALCHILE
| ID: biblio-1540120
2.
Geneve; OMS; 1987. 63 p. (OMS. Publicacion offset).
Monography
in French
| BVSNACUY
| ID: bnu-2219