Donald Freeman. (2005). Icon: International communication through English. Boston: McGraw -Hill.
Trích dẫn kiểu ChicagoDonald Freeman. Icon: International Communication Through English. Boston: McGraw -Hill, 2005.
MLA引文Donald Freeman. Icon: International Communication Through English. Boston: McGraw -Hill, 2005.
警告:這些引文格式不一定是100%准確.