Hawkins, Paula, author
Into the water
Doubleday, 2017
 Buku Teks
Hawkins, Paula, author
Into the water
Noura Books, 2017
 Buku Teks
Zhongguo da bai ke quan shu. Shui li = 中国大百科全书. 水利 = Encyclopedia of China Water Conservancy
Dabai Kequanshu Chubanshe, 1998
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Brakman, Willem
Water als water
EM. Querido's Uitgeverij N.V, 1965
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The encyclopedia of libertarianism
editor, Ronald Hamowy
Sage Publications, 2008
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