00610nam a2200193Ia 4500 CTU_3603 210402s9999 xx 000 0 und d 330 F218/N.70 FAO FAO economic and social development paper N.70 Economic cooperation among developing countries in agricultural trade FAO Rome FAO 1987 agriculture - economic aspects,agriculture and state,economics Nguyễn Quang Điền, 960530 Trung tâm Học liệu Trường Đại học Cần Thơ