Bard, R. L. (1972). Food aid and international agricultural trade: A study in legal and administrative control. Lexington Books.
芝加哥风格引文Bard, Robert L. Food Aid and International Agricultural Trade: A Study in Legal and Administrative Control. Lexington, Mass.: Lexington Books, 1972.
MLA引文Bard, Robert L. Food Aid and International Agricultural Trade: A Study in Legal and Administrative Control. Lexington Books, 1972.
警告：这些引文格式不一定是100％准确.