Feather, R. M., Snyder, S. L., & T Hesser, D. (1993). Merrill earth science. McGraw-Hill.
芝加哥风格引文Feather, Ralph M., Susan Leach Snyder, 与 Dale T Hesser. Merrill Earth Science. New York: McGraw-Hill, 1993.
MLA引文Feather, Ralph M., et al. Merrill Earth Science. McGraw-Hill, 1993.
警告：这些引文格式不一定是100％准确.