APA引文

WHO. (1993). Environmental health criteria; N.144: Principles for evaluating chemical effects on the aged population. Geneva: WHO.

Trích dẫn kiểu Chicago

WHO. Environmental Health Criteria; N.144: Principles for Evaluating Chemical Effects On the Aged Population. Geneva: WHO, 1993.

MLA引文

WHO. Environmental Health Criteria; N.144: Principles for Evaluating Chemical Effects On the Aged Population. Geneva: WHO, 1993.

警告：這些引文格式不一定是100％准確.