@book{56430,
	author = {Smithsonian Institution.},
	title = {Annual report of the board of regents. 1846},
	publisher = {Government Printing Office,},
	year = {1847-},
	address = {Washington :},
	note = {La biblioteca tiene: 1868,1888,1890,1891,1892,1893,1897,18902,1903,1904,1905,1906,1907,1908,1909,1911,1912,1914,1917,1918,1920,1921,1922,1946(2c)}
}