@book{55151,
	author = {Yearbook of Agriculture.},
	title = {Yearbook of Agriculture},
	publisher = {Department of Agriuclture,},
	year = {1894-},
	address = {Washington :},
	note = {A partir de 1938 cada volumen tienne tema especial 1984-1915, 1917-1927, 1930-37}
}