Cita APA (7th ed.)

Beyerlin, U., & Marauhn, T. (2011). International environmental law. Hart Publishing.

Cita Chicago (17th ed.)

Beyerlin, Ulrich, i Thilo Marauhn. International Environmental Law. Oxford: Hart Publishing, 2011.

Cita MLA (9th ed.)

Beyerlin, Ulrich, i Thilo Marauhn. International Environmental Law. Hart Publishing, 2011.