MLA

El-Badawy, and Jan Valentin. Sustainable Solutions for Railways and Transportation Engineering. Springer International Publishing, 2019.

APA

El-Badawy, E., & Valentin, J. (2019). Sustainable Solutions for Railways and Transportation Engineering. Springer International Publishing.

Chicago

El-Badawy, and Jan Valentin. Sustainable Solutions for Railways and Transportation Engineering. : Springer International Publishing, 2019.