California (Southern) University. National Center for Educational Media. (1969). Index to overhead transparencies. R.R. Bowler.
芝加哥风格引文California (Southern) University. National Center for Educational Media. Index to Overhead Transparencies. New York: R.R. Bowler, 1969.
MLA引文California (Southern) University. National Center for Educational Media. Index to Overhead Transparencies. R.R. Bowler, 1969.
警告：这些引文格式不一定是100％准确.