Humble, J. (1967). Improving business result. Mc Graw Hill.
芝加哥风格引文Humble, John. Improving Business Result. London: Mc Graw Hill, 1967.
MLA引文Humble, John. Improving Business Result. Mc Graw Hill, 1967.
警告：这些引文格式不一定是100％准确.
APA引文