cam a22 u 4500 128579803 CHVBK 20200921121459.0 880212s1976 fr | 10 |eng|d (OCoLC)637001864 (NEBIS)000207762 ETH-BIB ger ETH-BIB ETHICS-ISBD Expert panel on project 4: Impact of human activities on the dynamics of arid and semi-arid zone ecosystems, with particular attention to the effects of irrigation (meeting); Paris, 18-20 March 1975 : final report Paris Unesco 1976 44 p. MAB report series no.29 29 (NEBIS)000024471 293094233 BEWÄSSERUNGSKULTUR + BEWÄSSERUNG (LANDWIRTSCHAFT) ger (ETHUDK)000031153 ethudk HUMANÖKOLOGIE ger (ETHUDK)000021472 ethudk STEPPENÖKOLOGIE + GRASLANDÖKOLOGIE (ÖKOLOGIE) ger (ETHUDK)000047539 ethudk WÜSTENÖKOLOGIE + TROCKENGEBIETSÖKOLOGIE (ÖKOLOGIE) ger (ETHUDK)000021445 ethudk Konferenzschrift Paris 1975/03 gnd-content u HUMANÖKOLOGIE ger 574.8 nebis E1 u STEPPENÖKOLOGIE + GRASLANDÖKOLOGIE (ÖKOLOGIE) ger 574.4(252.51) nebis E1 u BEWÄSSERUNGSKULTUR + BEWÄSSERUNG (LANDWIRTSCHAFT) ger 631.587,631.67 nebis E1 u WÜSTENÖKOLOGIE + TROCKENGEBIETSÖKOLOGIE (ÖKOLOGIE) ger 574.4(252.32/.33) nebis E1 u ÉCOLOGIE HUMAINE fre 574.8 nebis E1 u HUMAN ECOLOGY eng 574.8 nebis E1 u STEPPE ECOLOGY + GRASSLAND ECOLOGY (ECOLOGY) eng 574.4(252.51) nebis E1 u STEPPES + PRAIRIES (ÉCOLOGIE) fre 574.4(252.51) nebis E1 u IRRIGATION + CULTURES IRRIGUÉES (AGRICULTURE) fre 631.587,631.67 nebis E1 u IRRIGATION FARMING + IRRIGATION (AGRICULTURE) eng 631.587,631.67 nebis E1 u DESERT ECOLOGY + ARID LAND ECOLOGY (ECOLOGY) eng 574.4(252.32/.33) nebis E1 u ÉCOLOGIE DES DÉSERTS + ÉCOLOGIE DES ZONES ARIDES (ÉCOLOGIE) fre 574.4(252.32/.33) nebis E1 Unesco Project 4, Impact of Human Activities on the Dynamics of Arid and Semi-Arid Zones' Ecosystems, with the Particular Attention to the Effect of Irrigation (DE-588)1087482801 BK020800 XK020000 XK020000 Kongress = Congrès 1975/03 Paris NEBIS E16 E16 RH P 817508: 29 NEBIS 490 -- MAB report series no.29 29 (NEBIS)000024471 293094233 NEBIS 710 2- Unesco Project 4, Impact of Human Activities on the Dynamics of Arid and Semi-Arid Zones' Ecosystems, with the Particular Attention to the Effect of Irrigation (DE-588)1087482801