003220000a22001210004500020001500000060000800015082001600023100001600039245003000055260005200085260000900137650005400146  a8178885425  a100  a630.276 BIS  aBiswas, P K  aAgricultural Microbiology  aNew Delhi, Dominant Publishers and Distributors  c2008  anitrogen Fixing, Bioinseticides, Fungal Symbionts