Sapena Pastor, R., & Sapena Brugada, R. (1962). A statement of the laws of Paraguay in matters affecting business (Second edition.). Pan American Union.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSapena Pastor, Raúl, और Raúl Sapena Brugada. A Statement of the Laws of Paraguay in Matters Affecting Business. Second edition. Washington, D.C.: Pan American Union, 1962.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSapena Pastor, Raúl, और Raúl Sapena Brugada. A Statement of the Laws of Paraguay in Matters Affecting Business. Second edition. Pan American Union, 1962.
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