00679nam a2200217Ia 4500 CTU_22613 210402s9999 xx 000 0 und d 631 F233/N13 Douglas J McConnell FAO farm systems management series N13 Farm managment for Asia: a systems approach Douglas J McConnell, FAO, John L Dillon Rome FAO 1997 Nguyên lý cơ bản hệ thống nông nghiệp PD626 farm management Nguyễn Quang Điền, 980522 Trung tâm Học liệu Trường Đại học Cần Thơ