National Education Association of the United States. Dept. of Audio-Visual Instruction & Schuller, C. F. (1954). The school administrator and his audio-visual program. s.n.
Chicago-referens (17:e uppl.)National Education Association of the United States. Dept. of Audio-Visual Instruction och Charles Francis Schuller. The School Administrator and His Audio-visual Program. Washington: s.n, 1954.
MLA-referens (9:e uppl.)National Education Association of the United States. Dept. of Audio-Visual Instruction och Charles Francis Schuller. The School Administrator and His Audio-visual Program. s.n, 1954.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.