Variability in continuation school populations : a study of the significance of differences in the proportions of child workers

CiNii 所蔵館 12館

書誌事項

タイトル: "Variability in continuation school populations : a study of the significance of differences in the proportions of child workers"

出版者

出版年月

Reprint of the 1931 ed., issued in series: Teachers College, Columbia University. Contributions to education, no. 454

Originally presented as author's thesis, Columbia

Includes bibliographical references