by Bernard Wernick Hammer, John Nathan Martin, Orren Lloyd-Jones, Percy Edgar Brown, Philip L. Blumenthal, Ralph Sydney Potter, Robert Earle Buchanan, John Marcus Evvard, R. H. Hix, Robert Shirley Snyder, S. C. Guernsey
Amino Acids, Ammonia and Nitrates in Manured and Limed Soil
by Bernard Wernick Hammer, John Nathan Martin, Orren Lloyd-Jones, Percy Edgar Brown, Philip L. Blumenthal, Ralph Sydney Potter, Robert Earle Buchanan, John Marcus Evvard, R. H. Hix, Robert Shirley Snyder, S. C. Guernsey
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