Drummond, D. F., Fraser, D. M., & Alweis, F. (1966). Five centuries in America (2nd [Teacher's annotated] ed.). American Book Co.
Dyfyniad Arddull ChicagoDrummond, Donald Francis, Dorothy M. Fraser, and Frank Alweis. Five Centuries in America. 2nd [Teacher's annotated] ed. [New York]: American Book Co, 1966.
Dyfyniad MLADrummond, Donald Francis, et al. Five Centuries in America. 2nd [Teacher's annotated] ed. American Book Co, 1966.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.