Lua APA (7ú heag.)

World Health Organization & World Health Organization. Selected non-heterocyclic polycyclic aromatic hydrocarbonsPolycyclic aromatic hydrocarbons, selected non-heterocyclic.

Lua i Stíl Chicago (17ú heag.)

World Health Organization agus World Health Organization. Selected Non-heterocyclic Polycyclic Aromatic HydrocarbonsPolycyclic Aromatic Hydrocarbons, Selected Non-heterocyclic.

Lua MLA (8ú heag.)

World Health Organization agus World Health Organization. Selected Non-heterocyclic Polycyclic Aromatic HydrocarbonsPolycyclic Aromatic Hydrocarbons, Selected Non-heterocyclic.

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