00667nam a2200193Ia 4500 CTU_122784 210402s9999 xx 000 0 und d 630 C767 Conway, Gordon R. Training notes for agroecosystem analysis and rapid rural appraisal : Faculty of agriculture & rural development Gordon R. Conway, Jennifer A. McCracken, Jules N. Pretty Hawkesbury, Aus University of Western Sydney 1987 Agricultural ecology,Rural development M.Loan, Huỳnh Mai Trung tâm Học liệu Trường Đại học Cần Thơ