Fredriksen, B. (1977). Slavery and its abolition in nineteenth-century Egypt. Universitetet i Bergen, Historisk Institutt.
Lua i Stíl Chicago (17ú heag.)Fredriksen, Børge. Slavery and Its Abolition in Nineteenth-century Egypt. Bergen: Universitetet i Bergen, Historisk Institutt, 1977.
Lua MLA (8ú heag.)Fredriksen, Børge. Slavery and Its Abolition in Nineteenth-century Egypt. Universitetet i Bergen, Historisk Institutt, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.