@book{30456,
	author = {Oltman, Roy E. and Brazil.},
	title = {Reconnaissance investigations of the discharge and water quality of the Amazon River,},
	year = {1968.},
	series = {United States. Geological Survey. Circular},
	address = {Washington,},
	note = {Prepared in cooperation with the Ministerio da Marinha do Brazil [and the] University of Brazil.}
}