Nida, W. L. (1926). Explorers and pioneers: I. Following Columbus. II. Following the frontier. The Macmillan Co..
Lua i Stíl Chicago (17ú heag.)Nida, William Lewis. Explorers and Pioneers: I. Following Columbus. II. Following the Frontier. New York: The Macmillan Co., 1926.
Lua MLA (8ú heag.)Nida, William Lewis. Explorers and Pioneers: I. Following Columbus. II. Following the Frontier. The Macmillan Co., 1926.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.