Colloque international de géographie appliquée : 3me réunion de la Commission de géographie appliquée de L'Union géographique internationale, Liège, 7-13 septembre 1967, comptes rendus
Proceedings of the 3d of a series of meetings; proceedings of the 2d are entered under International Geographical Union. Commission on Applied Geography; the 4th, under International Geographical Union. Commission on Applied Geography.