World Health Organization & World Health Organization. Selected non-heterocyclic polycyclic aromatic hydrocarbonsPolycyclic aromatic hydrocarbons, selected non-heterocyclic.
芝加哥风格引文World Health Organization 与 World Health Organization. Selected Non-heterocyclic Polycyclic Aromatic HydrocarbonsPolycyclic Aromatic Hydrocarbons, Selected Non-heterocyclic.
MLA引文World Health Organization 与 World Health Organization. Selected Non-heterocyclic Polycyclic Aromatic HydrocarbonsPolycyclic Aromatic Hydrocarbons, Selected Non-heterocyclic.
警告：这些引文格式不一定是100％准确.