00856nam a2200241 a 4500 1/6998 780309c19781976enk b 00110 eng 0080214967 7295 DLC GR-PeUP 338.1'9 EC Eckholm, Erik P. Losing ground : environmental stress and world food prospects / Erik P. Eckholm. Oxford ; New York : Pergamon Press, 1978. 223 σ. ; 23 εκ. Pergamon Oxford geographies ; Περιέχει βιβλιογραφία και ευρετήριο. Agriculture Environmental aspects. Man Influence on nature. Food supply. Soil erosion. Pergamon Oxford geographies. INST UNIPILB MAIN 20040709 338.1'9 EC 00106969 00106969 LOAN 0 1