@book{9730,
	author = {Niven, Ivan},
	title = {Diophantine approximations},
	publisher = {Interscience Publication,},
	year = {1963},
	series = {Interscience tracts in Pure and Applied Mathematics},
	address = {New York:},
	note = {"Ninth annual series of Earle Raymond Hedrick lectures of the Mathematical Association of America".}
}