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.
Παραπομπή σε μορφή Chicago (17η εκδ.)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.
Παραπομπή σε μορφή MLA (8th εκδ.)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.