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
"Crowther, A. F.","Geology of the Mwingi area, North Kitui : degree sheet 45, N.W. quarter : with coloured geological map",,The government printer,1955,Geological survey of Kenya,,,,https://cir.nii.ac.jp/crid/1130000795025478528