Sumner, G. L. (1949). The toastmaster' s guide: Secrets to success at the speakers' table. New York: Blue Ribbon Books.
シカゴスタイル引用形Sumner, G. Lynn. The Toastmaster' S Guide: Secrets to Success At the Speakers' Table. New York: Blue Ribbon Books, 1949.
MLA引用形式Sumner, G. Lynn. The Toastmaster' S Guide: Secrets to Success At the Speakers' Table. New York: Blue Ribbon Books, 1949.
警告: この引用は必ずしも正確ではありません.