Williams, C. M. (1968). Learning from pictures (2d ed.). Dept. of Audiovisual Instruction, National Education Association.
芝加哥风格引文Williams, Catharine M. Learning from Pictures. 2d ed. Washington: Dept. of Audiovisual Instruction, National Education Association, 1968.
MLA引文Williams, Catharine M. Learning from Pictures. 2d ed. Dept. of Audiovisual Instruction, National Education Association, 1968.
警告：这些引文格式不一定是100％准确.