Cita APA

Zarrilli, S., Jah, V., & Vossenaar, R. 1. (1997). Eco-labelling and international trade. Hampshire, Inglaterra: United Nations.

Citación estilo Chicago

Zarrilli, Simonetta, Veena Jah, y René 1945- Vossenaar. Eco-labelling and International Trade. Hampshire, Inglaterra: United Nations, 1997.

Cita MLA

Zarrilli, Simonetta, Veena Jah, y René 1945- Vossenaar. Eco-labelling and International Trade. Hampshire, Inglaterra: United Nations, 1997.