Cita APA (7a ed.)

Programme, U. N. E., & Jeftic, L. (2009). Marine Litter: A Global Challenge.

Cita Chicago Style (17a ed.)

Programme, United Nations Environment, y Ljubomir Jeftic. Marine Litter: A Global Challenge. 2009.

Cita MLA (8a ed.)

Programme, United Nations Environment, y Ljubomir Jeftic. Marine Litter: A Global Challenge. 2009.

Cita IICA/CATIE

Programme, U. N. E., ; Jeftic, L. 2009. Marine Litter: A Global Challenge.