MLA

Walker, et al. Sustainable Aviation: Greening the Flight Path. Springer International Publishing, 2020.

APA

Walker, W., Bergantino, A. Stefania, Loiacono, L., & Sprung-Much, N. (2020). Sustainable Aviation: Greening the Flight Path. Springer International Publishing.

Chicago

Walker, Angela Stefania Bergantino, Luisa Loiacono, and Northrop Sprung-Much. Sustainable Aviation: Greening the Flight Path. : Springer International Publishing, 2020.