@book{86533,
	author = {Silva, Ryshardson Geovane Pereira de Oliveira e},
	title = {Semi-detailed survey of soils of Ceará’s semiarid region: Lavoura Seca Experimental Farm},
	note = {
Publicação on-line; 21 ref.; 3 illus.; Summaries (En, Pt)},
	url = {https://www.scielo.br/j/rca/a/spjcJZRKY73B5xRN3TQf6MC/?format=pdf&lang=en}
}