MLA

Safi, et al. Proceedings of the 4th International Symposium On Materials and Sustainable Development. Springer International Publishing, 2020.

APA

Safi, S., Daoui, A., Ghernouti, Y., & Mechakra, H. (2020). Proceedings of the 4th International Symposium on Materials and Sustainable Development. Springer International Publishing.

Chicago

Safi, Abdelhakim Daoui, Youcef Ghernouti, and Hamza Mechakra. Proceedings of the 4th International Symposium On Materials and Sustainable Development. : Springer International Publishing, 2020.