Dyfyniad APA
Boyer, P. S. (1993). The enduring vision: A history of the American people (2nd ed.). D.C. Heath and Co..
Dyfyniad Arddull Chicago
Boyer, Paul S. The Enduring Vision: A History of the American People. 2nd ed. Lexington: D.C. Heath and Co., 1993.
Dyfyniad MLA
Boyer, Paul S. The Enduring Vision: A History of the American People. 2nd ed. D.C. Heath and Co., 1993.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.