Langan, J. (1987). Sentence skills: A workbook for writers. New York: McGraw-Hill.
Trích dẫn kiểu ChicagoLangan, John. Sentence Skills: A Workbook for Writers. New York: McGraw-Hill, 1987.
ציטוט MLALangan, John. Sentence Skills: A Workbook for Writers. New York: McGraw-Hill, 1987.
אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.