004520000a22001210004500060000800000082002100008100002000029245015000049260004700199260000900246300000800255650006700263  a115  a658.809 6318 SEM  aAlexander, T.M.  aSeminar on fertiliser marketing : proceedings of the seminar on fertiliser marketing organsed by the fertiliser assoication of India at New Delhi  aNew Delhi, Fertilizer association of India  c1969  a342  aFertilizer marketing - India/ fertilisers - India - congresses