Campbell, D. (1929). Wanderings in Central Africa: The experiences & adventures of a lifetime of pioneering & exploration. Lippincott.
Lua i Stíl Chicago (17ú heag.)Campbell, Dugald. Wanderings in Central Africa: The Experiences & Adventures of a Lifetime of Pioneering & Exploration. Philadelphia: Lippincott, 1929.
Lua MLA (8ú heag.)Campbell, Dugald. Wanderings in Central Africa: The Experiences & Adventures of a Lifetime of Pioneering & Exploration. Lippincott, 1929.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.