Détail du congrès:
Congrès: PROCEEDINGS OF THE NATIONAL SYMPOSIUM ON CONSERVATION SYSTEMS, DECEMBER 14-15,1987 ON "OPTIMUM EROSION CONTROL AT LEAST COST" (1987; USA) (1987) |
Congrès: PROCEEDINGS OF THE NATIONAL SYMPOSIUM ON CONSERVATION SYSTEMS, DECEMBER 14-15,1987 ON "OPTIMUM EROSION CONTROL AT LEAST COST" (1987; USA) (1987) |