Não informado. (1958). Drugs Made in Germany: Journal of pharmaceutical exporters. Cantor.
Chicago-referens (17:e uppl.)Não informado. Drugs Made in Germany: Journal of Pharmaceutical Exporters. Aulendorf, Alemanha: Cantor, 1958.
MLA-referens (8:e uppl.)Não informado. Drugs Made in Germany: Journal of Pharmaceutical Exporters. Cantor, 1958.
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