Lawrence, S. A. (1966). United States merchant shipping: Policies and politics. Brookings Institution.
芝加哥风格引文Lawrence, S. A. United States Merchant Shipping: Policies and Politics. Washington, D. C.: Brookings Institution, 1966.
MLA引文Lawrence, S. A. United States Merchant Shipping: Policies and Politics. Brookings Institution, 1966.
警告：这些引文格式不一定是100％准确.