@book{344737,
	author = {Barrueco, C.R. and IICA, Brasilia, DF, (Brazil)},
	title = {Simposio Internacional de fixacao de nitrogenio das nao-leguminosas},
	year = {1989. },
	address = {Brasilia (Brazil): },
	note = {IICA; 5 tables ; 4 graphs ; 5 ref.}
}