Dyfyniad APA
Thornton, A. P. (1977). Imperialism in the twentieth century. University of Minnesota Press.
Dyfyniad Arddull Chicago
Thornton, A. P. Imperialism in the Twentieth Century. Minneapolis: University of Minnesota Press, 1977.
Dyfyniad MLA
Thornton, A. P. Imperialism in the Twentieth Century. University of Minnesota Press, 1977.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.