Plesur, M. (1971). America's outward thrust: Approaches to foreign affairs, 1865-1890. Northern Illinois University Press.
Chicago-referens (17:e uppl.)Plesur, Milton. America's Outward Thrust: Approaches to Foreign Affairs, 1865-1890. DeKalb: Northern Illinois University Press, 1971.
MLA-referens (9:e uppl.)Plesur, Milton. America's Outward Thrust: Approaches to Foreign Affairs, 1865-1890. Northern Illinois University Press, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.