@book{51638,
	author = {Yadav, B.N},
	title = {Contribution of Azotobacter As Co-Inoculant of Rhizobium Towards N2-Fixation in Rhizobium-Lentil (Lens Culinaris) Symbiosis},
	publisher = {RAU},
	year = {1991},
	address = {Pusa, Samastipur}
}