Study Week on a Modern Approach to the Protection of the Environment Pontificia Academia Scientiarum, Pontificia Accademia delle scienze, & Marini-Bett�olo, G. B. (1989). Study Week on a Modern Approach to the Protection of the Environment, November 2-7, 1987. Pergamon Press.
Cita Chicago Style (17a ed.)Study Week on a Modern Approach to the Protection of the Environment Pontificia Academia Scientiarum, Pontificia Accademia delle scienze, y G. B. Marini-Bett�olo. Study Week on a Modern Approach to the Protection of the Environment, November 2-7, 1987. Oxford ; New York: Pergamon Press, 1989.
Cita MLA (8a ed.)Study Week on a Modern Approach to the Protection of the Environment Pontificia Academia Scientiarum, et al. Study Week on a Modern Approach to the Protection of the Environment, November 2-7, 1987. Pergamon Press, 1989.