APA সাইটেশন

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

শিকাগো স্টাইলে সাইটেশন

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

এমএলএ সাইটেশন

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