MLA

Orfanos, Chalid Assaf, and Christos C Zouboulis. Pigmented Ethnic Skin and Imported Dermatoses. Springer International Publishing, 2018.

APA

Orfanos, O., Assaf, C., & Zouboulis, C. C. (2018). Pigmented Ethnic Skin and Imported Dermatoses. Springer International Publishing.

Chicago

Orfanos, Chalid Assaf, and Christos C Zouboulis. Pigmented Ethnic Skin and Imported Dermatoses. : Springer International Publishing, 2018.