@book{548,
	author = {Markham, Gervase},
	title = {The English Husbandman: The First Part: Contayning the Knowledge of the true Nature of euery Soyle within this Kingdome: how to Plow it; and the manner of the Plough, and other Instruments},
	publisher = {Project Gutenberg},
	year = {1637},
	url = {https://www.gutenberg.org/cache/epub/22973/pg22973-images.html}
}