-. (1988). Selected environmental law statutes: 1988-1989 educational edition. West Pub.
芝加哥风格引文-. Selected Environmental Law Statutes: 1988-1989 Educational Edition. St. Paul: West Pub, 1988.
MLA引文-. Selected Environmental Law Statutes: 1988-1989 Educational Edition. West Pub, 1988.
警告：这些引文格式不一定是100％准确.