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 "Van Houten, Lyman Henry","Length of service of Pennsylvania high school teachers : the relationship between length of teaching service and certain economic, social, and educational factors, with a consideration of future needs and the supply",,AMS Press,1972,Contributions to education,,0404555225,,https://cir.nii.ac.jp/crid/1130000797629538560