Ward, M. A. (1970). Man and his environment: Proceedings of the first Banff Conference on pollution. Oxford: Pergamon Press.
Παραπομπή Chicago StyleWard, M. A. Man and His Environment: Proceedings of the First Banff Conference On Pollution. Oxford: Pergamon Press, 1970.
Παραπομπή MLAWard, M. A. Man and His Environment: Proceedings of the First Banff Conference On Pollution. Oxford: Pergamon Press, 1970.
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