00637nam a2200217Ia 4500 CTU_73706 210402s9999 xx 000 0 und d 400000 315.97 T455/T.2 Tổng cục thống kê Số liệu thống kê Việt Nam thế kỷ XX = Vietnam statiscal data in the 20th century Tổng cục thống kê Hà Nội Thống kê 2004 statistics vietnam Minh Trung tâm Học liệu Trường Đại học Cần Thơ