International Drug Newsmagazine. (1988). Drug news & perspectives. Prous Science.
Citação do estilo Chicago (17ª ed.)International Drug Newsmagazine. Drug News & Perspectives. Barcelona, Espanha: Prous Science, 1988.
Citação MLA (8ª ed.)International Drug Newsmagazine. Drug News & Perspectives. Prous Science, 1988.
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