Bull, I. D. (1997). New molecular methods for tracing natural and anthropogenic inputs to soils and sediments. University of Bristol.
Citace podle Chicago (17th ed.)Bull, Ian David. New Molecular Methods for Tracing Natural and Anthropogenic Inputs to Soils and Sediments. England: University of Bristol, 1997.
Citace podle MLA (8th ed.)Bull, Ian David. New Molecular Methods for Tracing Natural and Anthropogenic Inputs to Soils and Sediments. University of Bristol, 1997.
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