[ 发表于: Pollution ]
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Water pollution microbiology
1971-1972
Mitchell, Ralph
National Agricultural Library - United States of America
Research supplement to Journal, Water Pollution Control Federation
1971
National Agricultural Library - United States of America
Purification of mine water by freezing
1971
National Agricultural Library - United States of America
Design guides for biological wastewater treatment processes
1971
National Agricultural Library - United States of America
Detection of abandoned underground coal mines by geophysicalmethods
1971
National Agricultural Library - United States of America
Design and operation of an information center on analytical methodology
1971
Little, Robert L. | Darby, Ralph L. | Dennis, Bernard K.
The report discusses the design and operation of a pilot analytical methodology information storage and retrieval system tailored to the needs of the Analytical Quality Control Laboratory (AQCL) and other segments of the National Analytical Methods Development Research Program (NAMDRP). All aspects of the system are presented.
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National Agricultural Library - United States of America
The effects of agricultural waste water treatment on algal bioassay response | Bio-engineering aspects of agricultural drainage, San Joaquin Valley, California
1971
National Agricultural Library - United States of America
