Knapp, B. J. (2002). Elements of geographical hydrology. Unwin Hyman.
芝加哥风格引文Knapp, Brian J. Elements of Geographical Hydrology. London ; Winchester, Mass.: Unwin Hyman, 2002.
MLA引文Knapp, Brian J. Elements of Geographical Hydrology. Unwin Hyman, 2002.
警告：这些引文格式不一定是100％准确.