MLA

Roberts, Fiona, and Chee Koon Thum. Lee's Ophthalmic Histopathology. Springer, 2021.

APA

Roberts, F., & Thum, C. Koon. (2021). Lee's Ophthalmic Histopathology. Springer.

Chicago

Roberts, Fiona, and Chee Koon Thum. Lee's Ophthalmic Histopathology. : Springer, 2021.