APA引文

National Education Association of the United States. Dept. of Audio-Visual Instruction. (1952). Planning schools for use of audio-visual materials. no.1-. s. n.

Chicago Style (17th ed.) Citation

National Education Association of the United States. Dept. of Audio-Visual Instruction. Planning Schools for Use of Audio-visual Materials. No.1-. Washington: s. n, 1952.

MLA引文

National Education Association of the United States. Dept. of Audio-Visual Instruction. Planning Schools for Use of Audio-visual Materials. No.1-. s. n, 1952.