Cita APA (7th ed.)
Baars, J. (2012). Aging and the art of living. Johns Hopkins University Press.
Cita Chicago (17th ed.)
Baars, Jan. Aging and the Art of Living. Baltimore: Johns Hopkins University Press, 2012.
Cita MLA (9th ed.)
Baars, Jan. Aging and the Art of Living. Johns Hopkins University Press, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.