MLA

Freund, and Jr Antonsen. Principles of Free Electron Lasers. Springer International Publishing, 2018.

APA

Freund, F., & Antonsen, J. (2018). Principles of Free Electron Lasers. Springer International Publishing.

Chicago

Freund, and Jr Antonsen. Principles of Free Electron Lasers. : Springer International Publishing, 2018.