Translations on North Vietnam, nos. 625-645; JPRS 49227, 49229, 49255, 49269, 49276, 49289, 49290, 49306, 49308, 49333, 49345, 49355, 49378, 49386, 49387 49393, 49402, 49407, 49427, 49428, 49442.