Readhead, L., & Ward, C. (1997). Gymnastics. Copper Beech Books.
芝加哥风格引文Readhead, Lloyd, 与 Catherine Ward. Gymnastics. Brookfield, Conn: Copper Beech Books, 1997.
MLA引文Readhead, Lloyd, 与 Catherine Ward. Gymnastics. Copper Beech Books, 1997.
警告：这些引文格式不一定是100％准确.