@book{766,
	author = {Escobar Ramirez, Jairo and Barg Uwe},
	title = {Contaminacion de las Aguas Continentales de Bolivia, Costa Rica, Panama, Peru, Venezuela /},
	publisher = {FAO,},
	year = {1990.},
	series = {Copesca documento tecnico; No.. 8},
	address = {Roma :}
}