著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL
"Vedeld, Trond",Social-economic and ecological constraints on increased productivity among large circle chitemene cultivators in Zambia,,"International Development Programs, Agricultural University of Norway",1982,Occasional paper (Norges landbrukshøgskole. International Development Programs),,,,https://cir.nii.ac.jp/crid/1130282273281707136