HEM, J. D. (1970). Study and interpretation of the chemical characteris-tics of natural water.-- ed.2. United States Government.
芝加哥风格引文HEM, John D. Study and Interpretation of the Chemical Characteris-tics of Natural Water.-- Ed.2. Washington: United States Government, 1970.
MLA引文HEM, John D. Study and Interpretation of the Chemical Characteris-tics of Natural Water.-- Ed.2. United States Government, 1970.
警告：这些引文格式不一定是100％准确.