Cita APA (7th ed.)
Metchnikoff, E., & Mitchell, P. C. (2004). The prolongation of life: Optimistic studies. Springer Pub..
Cita Chicago (17th ed.)
Metchnikoff, Elie, i P. Chalmers Mitchell. The Prolongation of Life: Optimistic Studies. New York: Springer Pub., 2004.
Cita MLA (9th ed.)
Metchnikoff, Elie, i P. Chalmers Mitchell. The Prolongation of Life: Optimistic Studies. Springer Pub., 2004.
Atenció: Aquestes cites poden no estar 100% correctes.