forêt (1) châtaignier (1) Hongrie (1) Grèce (1) Croatie (1) Italie (1) Slovaquie (1) France (1) Turquie (1) Belgique (1) Pays-Bas (1) Suisse (1) Espagne (1) Portugal (1) Economic conditions (1) Textbooks (1) Textbooks (1) Piping (1) Wood (1) Service industries (1) Reason (1) Production (Economic theory) (1) Possibility (1) Plantations (1) Hypothesis (1) Giftware (1) Gifts (1) Forests and forestry (1) Forest surveys (1) Economics (1)