@book{340367,
	author = {Cunha, Gabriel Octávio de Mello },
	title = {Composition, chemical speciation and activity of ions in the solution of Brazilian acid soils},
	note = {

Publicação online; 41 ref.; 3 tables; Summaries (En, Pt)},
	url = {http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v13i3a5542/299}
}