Crawford, K. G. (1939). The pressure boys: The inside story of lobbying in America / by Kenneth G. Crawford (2. print.). Messner.
Chicago-Zitierstil (17. Ausg.)Crawford, Kenneth Gale. The Pressure Boys: The Inside Story of Lobbying in America / by Kenneth G. Crawford. 2. print. New York: Messner, 1939.
MLA-Zitierstil (8. Ausg.)Crawford, Kenneth Gale. The Pressure Boys: The Inside Story of Lobbying in America / by Kenneth G. Crawford. 2. print. Messner, 1939.
警告：这些引文格式不一定是100％准确.