REFERENCES
De Agostini (1992) Europe, Le Grand Atlas. Istituto Geografico De Agostini, Novara.
FAO (1990) FAO Production Yearbook 1989. FAO Statistical Series No 94. Food and
Agriculture Organisation, Rome.
Martyn, D (1992) Climates of the World. Elsevier Publications, Developments in
Atmospheric Sciences 18, Amsterdam.
Udvardy, M D F (1975) A Classification of the Biogeographical Provinces of the World. IUCN
Occasional Paper No 18. IUCN, Gland.
Van de Velde, R J, Faber, W, van Katwijk, V, Scholten, H J,
Thewessen, Th, Verspuy, M and Zevenbergen, M (1994) The Preparation of a European Land Use Database.
RIVM report no 712401001, Bilthoven.