Citazione APA

Porter, R. (1997). The greatest benefit to mankind: A medical history of humanity. New York: W. W. Norton.

Stile di citazione Chicago

Porter, Roy. The Greatest Benefit to Mankind: A Medical History of Humanity. New York: W. W. Norton, 1997.

Citazione MLA

Porter, Roy. The Greatest Benefit to Mankind: A Medical History of Humanity. New York: W. W. Norton, 1997.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.