> Verlagsreihe
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7:
Trace-element contamination of the environment David Purves
Amsterdam [u.a.]: Elsevier, 1985
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5:
Pesticides in the soil environment Shahamat U. Khan
Amsterdam [u.a.]: Elsevier, 1980
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1:
Trace-element contamination of the environment David Purves
Amsterdam [u.a.]: Elsevier, 1977
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2:
Microbiological aspects of pollution control R. K. Dart and R. J. Stretton
Amsterdam [u.a.]: Elsevier, © 1977