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 "楊, 永正 and Tyers, Rodney and Australian National University. Research School of Pacific Studies",The economic costs of food self-sufficiency in China,,"Australian National University, Research School of Pacific Studies",1987,Working papers in trade and development,,0947076174,,https://cir.nii.ac.jp/crid/1130000797993177600