@book{13506,
	author = {Sombrock, W.G. and Centre for Agricultural Publications and Documentation, Wageningen (Netherlands)},
	title = {Amazon soils. A reconnaissance of the soils of the Brazilian Amazon region [Solo; Amazonas; Brasil]},
	year = {1966. },
	address = {Wageningen (Netherlands): },
	note = {Summaries (Eng, Por); Bibliography p. 267-273 (141 ref.); Agricultural Research Reports, 672}
}