Frias, C. M. (1996). Two-dimensional visual aids and the development of cognitive learning in elementary science.
芝加哥风格引文Frias, Cesar Manalo. Two-dimensional Visual Aids and the Development of Cognitive Learning in Elementary Science. 1996.
MLA引文Frias, Cesar Manalo. Two-dimensional Visual Aids and the Development of Cognitive Learning in Elementary Science. 1996.
警告：这些引文格式不一定是100％准确.