Dyfyniad APA

World Health Organization. (2000). Concise International chemical assessment Document; Crystalline Silica , Quartz Nº 24. IOMS.

Dyfyniad Arddull Chicago

World Health Organization. Concise International Chemical Assessment Document; Crystalline Silica , Quartz Nº 24. Ginebra: IOMS, 2000.

Dyfyniad MLA

World Health Organization. Concise International Chemical Assessment Document; Crystalline Silica , Quartz Nº 24. IOMS, 2000.

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