Dyfyniad APA

Cornwell, E. E. (1965). Presidential leadership of public opinion. Indiana University Press.

Dyfyniad Arddull Chicago

Cornwell, Elmer E. Presidential Leadership of Public Opinion. Bloomington: Indiana University Press, 1965.

Dyfyniad MLA

Cornwell, Elmer E. Presidential Leadership of Public Opinion. Indiana University Press, 1965.

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