Dyfyniad APA

Boller, P. F., & Tilford, E. J. (1961). This is our Nation. Webster Pub. Co.

Dyfyniad Arddull Chicago

Boller, Paul F., and E. Jean Tilford. This Is Our Nation. St. Louis: Webster Pub. Co, 1961.

Dyfyniad MLA

Boller, Paul F., and E. Jean Tilford. This Is Our Nation. Webster Pub. Co, 1961.

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