Ventriglia, L. (1990). Ready for English: Comprehensive teacher's manual for all four levels. National Textbook.
芝加哥风格引文Ventriglia, Linda. Ready for English: Comprehensive Teacher's Manual for All Four Levels. Lincolnwood, Ill: National Textbook, 1990.
MLA引文Ventriglia, Linda. Ready for English: Comprehensive Teacher's Manual for All Four Levels. National Textbook, 1990.
警告：这些引文格式不一定是100％准确.