Unitying concepts in ecology : report of the plonary sessions of the first international congress of ecology the Haguo, the netherlands, september 8-14, 1974 Netharlands - International Congress on Unitying Concepts in Ecology 1974 : Netherlands); Van Dobben, W. H.; Lowe-McConnel, R. H. (The Hague, Netherlands : Dr. W. Junk B. V. Publishors, 1975)
Keywords: Ecology; Eco system management