Wittenberg, W. (1980). A prescriptive spelling program (Teacher's ed.). Barnell Loft.
Chicago Style (17th ed.) CitationWittenberg, William. A Prescriptive Spelling Program. Teacher's ed. Baldwin, N.Y.: Barnell Loft, 1980.
MLA引文Wittenberg, William. A Prescriptive Spelling Program. Teacher's ed. Barnell Loft, 1980.
警告:这些引文格式不一定是100%准确.