00490nam a2200181Ia 4500 CTU_7627 210402s9999 xx 000 0 und d 601 Z21 B F Zaitsev Kế hoạch hóa tiến bộ KHKT B F Zaitsev Hà Nội KHKT 1973 science,technology Nguyễn Huỳnh Mai, 960826 Trung tâm Học liệu Trường Đại học Cần Thơ