@book{51216,
	author = {Satyendra Kumar Choudhary},
	title = {Studies on Competitiveness of Streptomycin-Resistant Mutant Strains of rhizobium, Symbiotic Nitrogen Fixation & Grain Yield of Green Gram in Calcareous Soil},
	year = {1984},
	address = {RPCAU}
}