Não informado. (1977). Journal of Analytical Toxicology. Preston Publications.
Lua i Stíl Chicago (17ú heag.)Não informado. Journal of Analytical Toxicology. Niles, Ill: Preston Publications, 1977.
Lua MLA (8ú heag.)Não informado. Journal of Analytical Toxicology. Preston Publications, 1977.
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