APA (7th ed.) Citation

Porter, R. (1998). The greatest benefit to mankind: A medical history of humanity. Norton & Company.

Chicago Style (17th ed.) Citation

Porter, Roy. The Greatest Benefit to Mankind: A Medical History of Humanity. New York [etc.]: Norton & Company, 1998.

MLA (9th ed.) Citation

Porter, Roy. The Greatest Benefit to Mankind: A Medical History of Humanity. Norton & Company, 1998.