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2. BREED R. S. MURRAY E. G. D. AND HITCHENS A. P. 1948 Bergey's manual of determinative bacteriology. 6th ed. Williams & Wilkins Co. Baltimore Md. Refer to p. 179.
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4. The gases of swamp rice soils: their composition and relationship to the crop;HARRISON W. H.;Mem. Dept. Agr. India. Chem. Ser.,1914
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