Rugg, H. O. (1917). Statistical methods applied to education: A textbook for students of education in the quantitative study of school problems. Houghton Mifflin Company.
Chicago-Zitierstil (17. Ausg.)Rugg, Harold Ordway. Statistical Methods Applied to Education: A Textbook for Students of Education in the Quantitative Study of School Problems. Boston, New York [etc.]: Houghton Mifflin Company, 1917.
MLA-Zitierstil (8. Ausg.)Rugg, Harold Ordway. Statistical Methods Applied to Education: A Textbook for Students of Education in the Quantitative Study of School Problems. Houghton Mifflin Company, 1917.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.