Inversin, A. R. (1985). Hydraulic ram. Volunteers in Technical Assistance.
芝加哥风格引文Inversin, Allen R. Hydraulic Ram. Arlington, Va: Volunteers in Technical Assistance, 1985.
MLA引文Inversin, Allen R. Hydraulic Ram. Volunteers in Technical Assistance, 1985.
警告：这些引文格式不一定是100％准确.