MLA

Warren, Richard, and Alan Menter. Handbook of Psoriasis and Psoriatic Arthritis. Cham: Springer International Publishing, 2016.

APA

Warren, R., & Menter, A. (2016). Handbook of Psoriasis and Psoriatic Arthritis. Cham: Springer International Publishing.

Chicago

Warren, Richard, and Alan Menter. Handbook of Psoriasis and Psoriatic Arthritis. Cham: Springer International Publishing, 2016.