Roe, G., & Allen, M. (1999). A comparison of competing explanations for the 100,000-yr ice age cycle.
芝加哥风格引文Roe, G., 与 M. Allen. A Comparison of Competing Explanations for the 100,000-yr Ice Age Cycle. 1999.
MLA引文Roe, G., 与 M. Allen. A Comparison of Competing Explanations for the 100,000-yr Ice Age Cycle. 1999.
警告：这些引文格式不一定是100％准确.