World Health Organization. Concise International chemical Assessment Document; Cyclic acid anhydrides: Human health aspects. IOMS.
Lua i Stíl Chicago (17ú heag.)World Health Organization. Concise International Chemical Assessment Document; Cyclic Acid Anhydrides: Human Health Aspects. Ginebra: IOMS.
Lua MLA (9ú heag.)World Health Organization. Concise International Chemical Assessment Document; Cyclic Acid Anhydrides: Human Health Aspects. IOMS.
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