MLA

Cavallini, Giorgio, and Gianni Paulis. Peyronie’s Disease. Springer International Publishing, 2015.

APA

Cavallini, G., & Paulis, G. (2015). Peyronie’s Disease. Springer International Publishing.

Chicago

Cavallini, Giorgio, and Gianni Paulis. Peyronie’s Disease. : Springer International Publishing, 2015.