APA aipamena

Kramer, L. (1992). Focus on European environmental law. Sweet and Maxwell.

Chicago Style aipamena

Kramer, Ludwig. Focus on European Environmental Law. London: Sweet and Maxwell, 1992.

MLA aipamena

Kramer, Ludwig. Focus on European Environmental Law. Sweet and Maxwell, 1992.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.