Dyfyniad APA

H Johnson. (1966). The Oxford companion to American history. Oxford, New York: Oxford Univ. Press.

Dyfyniad Arddull Chicago

H Johnson. The Oxford Companion to American History. Oxford, New York: Oxford Univ. Press, 1966.

Dyfyniad MLA

H Johnson. The Oxford Companion to American History. Oxford, New York: Oxford Univ. Press, 1966.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.