Παραπομπή σε μορφή APA (7η εκδ.)

Muñoz Aunión, A., & León Silva, G. A. (2020). The polluter pays principle in the European regulation. The environment summited to juridical rules. Universidad Autónoma de Tamaulipas.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Muñoz Aunión, Antonio, και Glorimar Alejandra León Silva. The Polluter Pays Principle in the European Regulation. The Environment Summited to Juridical Rules. Universidad Autónoma de Tamaulipas, 2020.

Παραπομπή σε μορφή MLA (8th εκδ.)

Muñoz Aunión, Antonio, και Glorimar Alejandra León Silva. The Polluter Pays Principle in the European Regulation. The Environment Summited to Juridical Rules. Universidad Autónoma de Tamaulipas, 2020.