Study guide to accompany environment, fourth edition, Peter H. Raven, Linda R. Berg [study guide with elementary chemistry to accompany environment] - Aliff, John Vincent; Raven, Peter H.; Berg, Linda R. (Wiley, 2004)
Keywords: Conservation des ressources naturelles; Environnement - Politique gouvernementale; Environnement - Étude et enseignement; Umweltpolitik; Conservation of natural resources; Environmental education; Environmental policy; Umweltwissenschaften