Whitman, T. S. (1997). The price of freedom: Slavery and manumission in Baltimore and early national Maryland. The University Press of Kentucky.
Dyfyniad Arddull ChicagoWhitman, T. Stephen. The Price of Freedom: Slavery and Manumission in Baltimore and Early National Maryland. Lexington, Kentucky: The University Press of Kentucky, 1997.
Dyfyniad MLAWhitman, T. Stephen. The Price of Freedom: Slavery and Manumission in Baltimore and Early National Maryland. The University Press of Kentucky, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.