MacCracken, J. L. (1993). New light at the Cape of Good Hope: William Porter, the father of Cape liberalism. Ulster Historical Foundation.
Chicago-Zitierstil (17. Ausg.)MacCracken, John L. New Light at the Cape of Good Hope: William Porter, the Father of Cape Liberalism. Belfast: Ulster Historical Foundation, 1993.
MLA-Zitierstil (9. Ausg.)MacCracken, John L. New Light at the Cape of Good Hope: William Porter, the Father of Cape Liberalism. Ulster Historical Foundation, 1993.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.