Klahr, D. (1976). Cognition and instruction. Lawrence Erlbaum.
芝加哥风格引文Klahr, David. Cognition and Instruction. Hillsdale, N. J: Lawrence Erlbaum, 1976.
MLA引文Klahr, David. Cognition and Instruction. Lawrence Erlbaum, 1976.
警告：这些引文格式不一定是100％准确.
APA引文