1.
México; ECO; 1986. vi,218 p. ilus.
Monography
in Spanish
| LILACS
| ID: lil-377986
2.
s.l; Centro Panamericano de Ecologia Humana y Salud; 1986. 218 p. ilus, tab.
Monography
in Spanish
| LILACS
| ID: lil-45959