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1
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2
Nitrogen in Indian agriculture (1961-70) : a bibliography of N, NP, NK, NPK and other related factors
प्रकाशित 1972विषय: “…Nitrogen…”
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3
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4
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6
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The role of nitrogen fixation in intensive forestry in Canada
प्रकाशित 1984विषय: “…Nitrogen-Fixation…”
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8
The role of nitrogen fixation in intensive forestry in Canada
प्रकाशित 1983विषय: “…Nitrogen-Fixation…”
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9
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10
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11
A review of nitrogen in the tropics with particular reference to pastures : a symposium
प्रकाशित 1962विषय: “…Nitrogen fixation…”
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12
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13
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14
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15
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16
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17
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Nitrogen fixing organisms : pure and applied aspects
प्रकाशित 1990विषय: “…Nitrogen fixation…”
पुस्तक