Dyfyniad APA

DAVIDSON, B. (1962). President Kennedy selects six brave presidents. Harper and Row.

Dyfyniad Arddull Chicago

DAVIDSON, Bill. President Kennedy Selects Six Brave Presidents. New York: Harper and Row, 1962.

Dyfyniad MLA

DAVIDSON, Bill. President Kennedy Selects Six Brave Presidents. Harper and Row, 1962.

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