Logan, A. C., Rubin, M. G., & Levy, P. M. (2010). Your skin, younger: New science secrets to naturally younger skin. Cumberland House.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रLogan, Alan C., Mark G. Rubin, और Phillip M. Levy. Your Skin, Younger: New Science Secrets to Naturally Younger Skin. Naperville, Ill.: Cumberland House, 2010.
एमएलए (8वां संस्करण) प्रशस्ति पत्रLogan, Alan C., et al. Your Skin, Younger: New Science Secrets to Naturally Younger Skin. Cumberland House, 2010.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.