00519nam a2200181Ia 4500 CTU_86249 210402s9999 xx 000 0 und d 330 H151 Hailstones, Thomas J. Introduction to managerial economics Thomas J. Hailstones, John C. Rothwell Englewood Cliffs Prentice-Hall, Inc 1979 Managerial economics Năm Trung tâm Học liệu Trường Đại học Cần Thơ