@book{71956,
	author = {Day, Peter Russell and Jonson, Samuel.},
	title = {How crops grow, a century later ; a series of lectures to celebrate the centennial of how crops grow by Samuel W. Johnson, 1868},
	publisher = {Connecticut Agricultural Experiment Station,},
	year = {1969},
	series = {Connecticut Agr. Exp. Sta. Bulletin},
	address = {New Haven :}
}