Backler, A. L., & Lazarus, S. (1986). World geography. McDougal, Littell.
芝加哥风格引文Backler, Alan L., 与 Stuart Lazarus. World Geography. Evanston: McDougal, Littell, 1986.
MLA引文Backler, Alan L., 与 Stuart Lazarus. World Geography. McDougal, Littell, 1986.
警告：这些引文格式不一定是100％准确.