MLA

Tandon, Radhika; Galor, Anat; Sangwan, Virender Singh; Ray, Manotosh, et al. Peripheral Ulcerative Keratitis. Springer International Publishing, 2017.

APA

Tandon, M., Galor, A., Ray, M., & Sangwan, V. Singh. (2017). Peripheral Ulcerative Keratitis. Springer International Publishing.

Chicago

Tandon, Radhika; Galor, Anat; Sangwan, Virender Singh; Ray, Manotosh, Anat Galor, Manotosh Ray, and Virender Singh Sangwan. Peripheral Ulcerative Keratitis. : Springer International Publishing, 2017.