Frere, B. (1881). The union of the various portions of British South Africa. Sampson Law, Marston, Searle & Rivington.
Lua i Stíl Chicago (17ú heag.)Frere, Bartle. The Union of the Various Portions of British South Africa. London: Sampson Law, Marston, Searle & Rivington, 1881.
Lua MLA (8ú heag.)Frere, Bartle. The Union of the Various Portions of British South Africa. Sampson Law, Marston, Searle & Rivington, 1881.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.