Oberlander, T. M., & Muller, R. A. (1987). Essentials of physical geography today (2nd ed.). Random House.
芝加哥风格引文Oberlander, Theodore M., 与 Robert A. Muller. Essentials of Physical Geography Today. 2nd ed. New York: Random House, 1987.
MLA引文Oberlander, Theodore M., 与 Robert A. Muller. Essentials of Physical Geography Today. 2nd ed. Random House, 1987.
警告：这些引文格式不一定是100％准确.