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
"Steffen, Hans",Population geography of the Yemen Arab Republic : the major findings of the population and housing census of February 1975 and of supplementary demographic and cartographic surveys,,Dr. Ludwig Reichert,1979,Beihefte zum Tübinger Atlas des Vorderen Orients,,,,https://cir.nii.ac.jp/crid/1130000796600682624