1.
Washington, D.C; Pan American Health Organization; 1992. 30 p. ilus.(PAHO. Communicating for Health Series, 3). (92 75 12052 8).
Monography
in English
| PAHO
| ID: pah-17431
2.
Washington, D.C; Organización Panamericana de la Salud; 1992. 30 p. ilus.(OPS. Comunicación para la Salud, 3). (92 75 32052 7).
Monography
in Spanish
| PAHO
| ID: pah-11923
3.
Washington, D.C; Organización Panamericana de la Salud; 1985. 183 p. ilus.(OPS. Publicación Científica, 492).
Monography
in Spanish
| PAHO
| ID: pah-11848
4.
Washington, D.C; Pan American Health Organization; 1985. 172 p. ilus.(PAHO. Scientific Publication, 492).
Monography
in English
| PAHO
| ID: pah-11854