Boylan, W. A., & Taylor, A. S. (1929). Correct spelling: For graded schools. Noble and Noble.
Dyfyniad Arddull ChicagoBoylan, William A., and Albert Steele Taylor. Correct Spelling: For Graded Schools. New York: Noble and Noble, 1929.
Dyfyniad MLABoylan, William A., and Albert Steele Taylor. Correct Spelling: For Graded Schools. Noble and Noble, 1929.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.