Logan, A. C., Rubin, M. G., & Levy, P. M. (2010). Your skin, younger: New science secrets to naturally younger skin. Cumberland House.
Cita Chicago Style (17a ed.)Logan, Alan C., Mark G. Rubin, y Phillip M. Levy. Your Skin, Younger: New Science Secrets to Naturally Younger Skin. Naperville, Ill.: Cumberland House, 2010.
Cita MLA (8a ed.)Logan, Alan C., et al. Your Skin, Younger: New Science Secrets to Naturally Younger Skin. Cumberland House, 2010.
Precaución: Estas citas no son 100% exactas.