Bolton, H. E., & Marshall, T. M. (1920). The colonization of North America, 1492-1783. Macmillan Co..
Lua i Stíl Chicago (17ú heag.)Bolton, Herbert Eugene, agus Thomas Maitland Marshall. The Colonization of North America, 1492-1783. New York: Macmillan Co., 1920.
Lua MLA (8ú heag.)Bolton, Herbert Eugene, agus Thomas Maitland Marshall. The Colonization of North America, 1492-1783. Macmillan Co., 1920.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.