APA aipamena

Illinois Institute for Continuing Legal Education. (1983). Environmental law. Illinois Institute for Continuing Legal Education.

Chicago Style aipamena

Illinois Institute for Continuing Legal Education. Environmental Law. Springfield, Ill.: Illinois Institute for Continuing Legal Education, 1983.

MLA aipamena

Illinois Institute for Continuing Legal Education. Environmental Law. Illinois Institute for Continuing Legal Education, 1983.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.