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
"Charles, A. H and Hagger, R. J and British Grassland Society","Changes in sward composition and productivity : proceedings of a symposium organised by the British Grassland Society, 20-22 September 1978, held at the University of York",,British Grassland Society,1979,Occasional symposium,,0905944011,,https://cir.nii.ac.jp/crid/1130282269111430016