@book{164745,
	author = {Symposium on Soil Microbiology and Szegi, J.},
	title = {Proceedings of the Symposium on soil microbiology held in Budapest 16-20 June, 1970 /},
	publisher = {Akademiai Kiad�o,},
	year = {1972.},
	address = {Budapest :},
	note = {Includes index.}
}