CUBBERLKY, E. P. (1927). State school administration: A textbook of principles. Houghton, Mifflin.
Lua i Stíl Chicago (17ú heag.)CUBBERLKY, Ellwood Patterson. State School Administration: A Textbook of Principles. Houghton, Mifflin, 1927.
Lua MLA (9ú heag.)CUBBERLKY, Ellwood Patterson. State School Administration: A Textbook of Principles. Houghton, Mifflin, 1927.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.