Cita APA (7a ed.)

Welch, S. R. (1949). South Africa under King Sebastian and the Cardinal 1557-1580. [s.n.].

Cita Chicago Style (17a ed.)

Welch, Sidney R. South Africa Under King Sebastian and the Cardinal 1557-1580. Cape Town: [s.n.], 1949.

Cita MLA (9a ed.)

Welch, Sidney R. South Africa Under King Sebastian and the Cardinal 1557-1580. [s.n.], 1949.