@Book{ perkinson2010,
	author = {Robert Perkinson},
	title = {Texas Tough: the Rise of {A}merica's Prison Empire},
	address = {New York},
	publisher = {Metropolitan Books},
	year = 2010,

On the founding of a cotton mill at the Huntsville State Penitentiary in the 1850s:

Texas’s “factory system” thus completed an economic circuit based entirely on unfree labor: slaves produced the raw materials, which convicts then converted to textiles, which then ingloriously covered those same slaves toiling in the fields (78).