Cita APA (7a ed.)

Krämer, L. (1997). Focus on European environmental law (2nd ed.). Sweet & Maxwell.

Cita Chicago Style (17a ed.)

Krämer, Ludwig. Focus on European Environmental Law. 2nd ed. London: Sweet & Maxwell, 1997.

Cita MLA (9a ed.)

Krämer, Ludwig. Focus on European Environmental Law. 2nd ed. Sweet & Maxwell, 1997.