@book{113793,
	author = {Carter, Oliver Reuben},
	title = {Soil survey, area de Valle de Lajas, Lajas Valley area, Puerto Rico.},
	publisher = {U.S. Dept. of Agriculture, Soil Conservation Service},
	year = {1965.},
	series = {[United Soil Conservation Service] Soil survey},
	address = {Washington]},
	note = {Cover title.}
}