(1968). Change and continuity in twentieth century America: The 1920's. Ohio: Ohio State University Press.
Dyfyniad Arddull ChicagoChange and Continuity in Twentieth Century America: The 1920's. Ohio: Ohio State University Press, 1968.
Dyfyniad MLAChange and Continuity in Twentieth Century America: The 1920's. Ohio: Ohio State University Press, 1968.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.