FRENCH APPROVE UNITY TREATY, BUT SLIM MARGIN LEAVES DOUBTS
After a bruising referendum campaign that divided France and alarmed Western Europe, French voters narrowly approved a treaty on European union today, keeping alive the region's ambitious blueprint for the future but underlining the depth of opposition that it has awakened here. The result -- 51 percent to 49 percent, according to the Interior Ministry -- brought immediate expressions of relief from Government leaders throughout the 12-nation European Community who had feared that French rejection of the treaty would open up the region to a period of political uncertainty and even more profound economic disarray. 'Impetus' for Unity