References
- Esaá, M. E. (Ed.), 1981: Determinación de los niveles de mercurio total en dos especies de peces, Petenia kraussii y Sarotberodon mossambicus del Lago Valencia. — Thesis. Escuela de Biología, Facultad de Ciencias UCV, Caracas.
- Forstner, U. (Ed.), 1983: Metal pollution in the aquatic environment: 152. — Second edition, Springer-Verlag. Berlin, Heidelberg, New York, Tokio.
- Glooschenko, W. A., 1984: Metal Contamination in the Sediments of Lago Xolotlán. — Faculty of Environmental Studies. York University. North York, Ontario, Canada.
- Swedish Expert Group, 1971: Methyl mercury in fish. — Nord Higienisk tidskrift. Stockholm, Sweden.
- Takizama, Y., 1979: Epidemiology of Mercury Poisoning. — In: Nriagu, J. O. (Ed.): The Biogeo-chemistry of Mercury in the Environment: 359.
- Wyrick, B., 1981: Chemical Plant's Poison inflames a nation part VIII: Hazards for Export. — Newspaper Article: Newsday, U.S.A.