@book{49364,
	author = {Robertson, G. P. and Herrera, R.},
	title = {Nitrogen cycling in ecosystems of Latin American and the caribbean},
	publisher = {Martinus Nijhoof,},
	year = {1982},
	series = {Development in plant and soil sciences},
	address = {The Hague :},
	note = {Artículos aparecidos en : Plant and Soil v.67, 1982}
}