Sparks, J. D. (1981). Overhead projection. Educational Technology Publications.
芝加哥风格引文Sparks, Jerry D. Overhead Projection. Englewood Cliffs, N.J.: Educational Technology Publications, 1981.
MLA引文Sparks, Jerry D. Overhead Projection. Educational Technology Publications, 1981.
警告：这些引文格式不一定是100％准确.