著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) BLACK C. A.,Method of Soil Analysis Part 2,Chemical and Microbiological Properties,,Am. Soc. of Agron.,1965,9,,1387-1388,https://cir.nii.ac.jp/crid/1571417124426361344,