Dyfyniad APA

(2001). Outline of U.S. government. U.S.: United states Department of States.

Dyfyniad Arddull Chicago

Outline of U.S. Government. U.S.: United states Department of States, 2001.

Dyfyniad MLA

Outline of U.S. Government. U.S.: United states Department of States, 2001.

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