Illinois Institute for Continuing Legal Education. (1983). Environmental law. Illinois Institute for Continuing Legal Education.
芝加哥风格引文Illinois Institute for Continuing Legal Education. Environmental Law. Springfield, Ill.: Illinois Institute for Continuing Legal Education, 1983.
MLA引文Illinois Institute for Continuing Legal Education. Environmental Law. Illinois Institute for Continuing Legal Education, 1983.
警告：这些引文格式不一定是100％准确.