00541nam a2200181Ia 4500008004100000082001800041100001700059245003700076250000600113260003700119300000800156650003400164650001800198653002200216942001200238999001500250952009400265170901s1921    xx            000 0 und d  a546.711bK89F  aKnox, Joseph 0aFixation of Atmospheric Nitrogen  a2  aLondonbGurney and Jacksonc1921  a124  aChemistry and allied sciences  aPure Sciences  aNitrogen fixation  2ddccBK  c5641d5641  00102ddc4070aRAUbRAUd2017-10-18l0o546.711 K89Fp44105r2017-10-18w2017-10-18yBK