Não informado. (1956). Audiovisual instruction. National Education Association, Department of Audio Visual Instruction.
Čikaški stil citiranja (17. izdanje)Não informado. Audiovisual Instruction. Washington: National Education Association, Department of Audio Visual Instruction, 1956.
MLA način citiranja (8. izdanje)Não informado. Audiovisual Instruction. National Education Association, Department of Audio Visual Instruction, 1956.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.