Sapena Pastor, R., & Sapena Brugada, R. (1962). A statement of the laws of Paraguay in matters affecting business (Second edition.). Pan American Union.
Čikaški stil citiranja (17. izdanje)Sapena Pastor, Raúl, i Raúl Sapena Brugada. A Statement of the Laws of Paraguay in Matters Affecting Business. Second edition. Washington, D.C.: Pan American Union, 1962.
MLA način citiranja (8. izdanje)Sapena Pastor, Raúl, i Raúl Sapena Brugada. A Statement of the Laws of Paraguay in Matters Affecting Business. Second edition. Pan American Union, 1962.
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