@book{340451,
	author = {Pessoa, Maristella Moura Calaço },
	title = {Physical attributes of yellow oxisol under different monocultures in the savanna of Piauí state, Brazil},
	note = {

Publicação online; 31 ref.; 3 tables; 3 illus.; Summaries (En, Pt)},
	url = {http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v13i4a5577/275}
}