Association for Supervision and Curriculum Development\nNational Education Association of the United States. Dept. of Supervision and Curriculum Development. (1943). Educational Leadership. Association of Supervision and Curriculum Development.
Lua i Stíl Chicago (17ú heag.)Association for Supervision and Curriculum Development\nNational Education Association of the United States. Dept. of Supervision and Curriculum Development. Educational Leadership. Washington: Association of Supervision and Curriculum Development, 1943.
Lua MLA (8ú heag.)Association for Supervision and Curriculum Development\nNational Education Association of the United States. Dept. of Supervision and Curriculum Development. Educational Leadership. Association of Supervision and Curriculum Development, 1943.