Pratt, P. H. (1970). U.S. export and transaction controls. Machinery and Allied Products Institute.
芝加哥风格引文Pratt, Paul H. U.S. Export and Transaction Controls. Washington, D.C.: Machinery and Allied Products Institute, 1970.
MLA引文Pratt, Paul H. U.S. Export and Transaction Controls. Machinery and Allied Products Institute, 1970.
警告：这些引文格式不一定是100％准确.