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 Food and Agriculture Organization of the United Nations. Statistics Division,Estimation of crop areas and yields in agricultural statistics,,Food and Agriculture Organization of the United Nations,1982,FAO economic and social development paper,,9251011796,,https://cir.nii.ac.jp/crid/1130282269307132416