MLA

Collins, and William L Siegmann. Parabolic Wave Equations with Applications. Springer New York, 2019.

APA

Collins, C., & Siegmann, W. L. (2019). Parabolic Wave Equations with Applications. Springer New York.

Chicago

Collins, and William L Siegmann. Parabolic Wave Equations with Applications. : Springer New York, 2019.