Kelly, T., Jack, D., Sheeran, E., & LL Cool J. (2015). Unbreakable smile. Capitol Records ; School Boy Records.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रKelly, Tori, Daye Jack, Ed Sheeran, और LL Cool J. Unbreakable Smile. [Hollywood, CA] : [Santa Monica, CA]: Capitol Records ; School Boy Records, 2015.
एमएलए (8वां संस्करण) प्रशस्ति पत्रKelly, Tori, et al. Unbreakable Smile. Capitol Records ; School Boy Records, 2015.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.