Eilish, B. (2021). Happier than ever ([Explicit version].). Darkroom/Interscope Records.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEilish, Billie. Happier than Ever. [Explicit version]. Santa Monica, CA: Darkroom/Interscope Records, 2021.
एमएलए (8वां संस्करण) प्रशस्ति पत्रEilish, Billie. Happier than Ever. [Explicit version]. Darkroom/Interscope Records, 2021.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.