Dyfyniad APA

Kownslar, A. O., & Frizzle, D. B. (1967). Discovering American history. Holt, Rinehart and Winston.

Dyfyniad Arddull Chicago

Kownslar, Allan O., and Donald B. Frizzle. Discovering American History. New York: Holt, Rinehart and Winston, 1967.

Dyfyniad MLA

Kownslar, Allan O., and Donald B. Frizzle. Discovering American History. Holt, Rinehart and Winston, 1967.

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