Foundation for Economic Education, inc. (1952). Essays on liberty. Foundation for Economic Education.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFoundation for Economic Education, inc. Essays on Liberty. Irvington-on-Hudson, N.Y: Foundation for Economic Education, 1952.
एमएलए (8वां संस्करण) प्रशस्ति पत्रFoundation for Economic Education, inc. Essays on Liberty. Foundation for Economic Education, 1952.
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