Cubberley, E.P. Public school administration : A statement of the fundamental principles underlyng the organization and administration of public education / Edited by Ellwood P. Cubberley , by Elwood P. Cubberley; E.P. Cubberley .— : Houghton Mifflin Company .— 533 с. — Lang: eng .— URL: https://rucont.ru/efd/116602 (дата обращения: 13.11.2025)