Cita APA (7th ed.)

Nesse, R. M., & Williams, G. C. (1995). Why we get sick: The new science of darwinian medicine. Vintage Books.

Cita Chicago (17th ed.)

Nesse, Randolph M., i George C. Williams. Why We Get Sick: The New Science of Darwinian Medicine. New York, USA: Vintage Books, 1995.

Cita MLA (9th ed.)

Nesse, Randolph M., i George C. Williams. Why We Get Sick: The New Science of Darwinian Medicine. Vintage Books, 1995.