Παραπομπή σε μορφή APA (7η εκδ.)

Goelzer, J., & Saad, P. (1999). Cost recovery performance of the benefit charge in the Parana urbano program. Parancidade.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Goelzer, Jorge, και Paulo Saad. Cost Recovery Performance of the Benefit Charge in the Parana Urbano Program. Parana: Parancidade, 1999.

Παραπομπή σε μορφή MLA (8th εκδ.)

Goelzer, Jorge, και Paulo Saad. Cost Recovery Performance of the Benefit Charge in the Parana Urbano Program. Parancidade, 1999.