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 "Powers, Wilbur Louis and Ruzek, C. V. (Charles Vladis)",Soils of Chehalis series and their utilization,,"Agricultural Experiment Station, Oregon State Agricultural College",1932,Station bulletin,,,,https://cir.nii.ac.jp/crid/1130000796372443392