Elhmmali, M. M. (1998). Complementary use of bile acids and sterols as sewage pollution indicators. University of Bristol.
Chicago-viite (17. p.)Elhmmali, Mohaned Mimoun. Complementary Use of Bile Acids and Sterols as Sewage Pollution Indicators. England: University of Bristol, 1998.
MLA-viite (8. p.)Elhmmali, Mohaned Mimoun. Complementary Use of Bile Acids and Sterols as Sewage Pollution Indicators. University of Bristol, 1998.
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