Dyfyniad APA

Ferguson, J. H., & McHenry, D. E. (1950). Elements of American government. McGraw-Hill.

Dyfyniad Arddull Chicago

Ferguson, John Henry, and Dean Eugene McHenry. Elements of American Government. New York: McGraw-Hill, 1950.

Dyfyniad MLA

Ferguson, John Henry, and Dean Eugene McHenry. Elements of American Government. McGraw-Hill, 1950.

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