Gray, P. C. R., & Wiedemann, P. M. (1996). Risk and sustainability: Mutual lessons from approaches to the use of indicators / Philip C. R. Gray ; Peter M. Wiedemann (2nd edition.). Jülich: Forschungszentrum Programmgruppe Mensch, Umwelt, Technik.
Chicago Style CitationGray, Philip C. R., andfavorite Peter M. Wiedemann. Risk and Sustainability: Mutual Lessons From Approaches to the Use of Indicators / Philip C. R. Gray ; Peter M. Wiedemann. 2nd edition. Jülich: Forschungszentrum Programmgruppe Mensch, Umwelt, Technik, 1996.
MLA CitationGray, Philip C. R., andfavorite Peter M. Wiedemann. Risk and Sustainability: Mutual Lessons From Approaches to the Use of Indicators / Philip C. R. Gray ; Peter M. Wiedemann. 2nd edition. Jülich: Forschungszentrum Programmgruppe Mensch, Umwelt, Technik, 1996.