Παραπομπή σε μορφή APA (7η εκδ.)

Sapena Pastor, R., & Sapena Brugada, R. (1962). A statement of the laws of Paraguay in matters affecting business (Second edition.). Pan American Union.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Sapena Pastor, Raúl, και Raúl Sapena Brugada. A Statement of the Laws of Paraguay in Matters Affecting Business. Second edition. Washington, D.C.: Pan American Union, 1962.

Παραπομπή σε μορφή MLA (8th εκδ.)

Sapena Pastor, Raúl, και Raúl Sapena Brugada. A Statement of the Laws of Paraguay in Matters Affecting Business. Second edition. Pan American Union, 1962.