«Defensa social contra las enfermedades venéreas», por los Dres. Bravo, Covisa, Sáinz de Aja y Villarejo

On Social Prophylaxis of Venereal Diseases is a book written by 4 Spanish dermatologists: Bravo, Covisa, Sáinz de Aja, and Villarejo. It is an illustration of the information provided on venereal disease at the beginning of twentieth century in Spain.