MLA

Rout, Saroj; Sonkusale, Sameer, and Sameer Sonkusale. Active Metamaterials. Springer International Publishing, 2017.

APA

Rout, S., & Sonkusale, S. (2017). Active Metamaterials. Springer International Publishing.

Chicago

Rout, Saroj; Sonkusale, Sameer, and Sameer Sonkusale. Active Metamaterials. : Springer International Publishing, 2017.