World Health Organization & World Health Organization. Principles and methods for the assessment of risk from essential trace elements.
芝加哥风格引文World Health Organization 与 World Health Organization. Principles and Methods for the Assessment of Risk from Essential Trace Elements.
MLA引文World Health Organization 与 World Health Organization. Principles and Methods for the Assessment of Risk from Essential Trace Elements.
警告：这些引文格式不一定是100％准确.