Cita APA (7th ed.)
ebrary, Inc, Carstensen, L. L., & Hartel, C. R. (2006). When I'm 64. National Academies Press.
Cita Chicago (17th ed.)
ebrary, Inc, Laura L. Carstensen, i Christine R. Hartel. When I'm 64. Washington, DC: National Academies Press, 2006.
Cita MLA (9th ed.)
ebrary, Inc, et al. When I'm 64. National Academies Press, 2006.
Atenció: Aquestes cites poden no estar 100% correctes.