O’connell, B., & O’connell, F. (2021). Happier Than Ever. Universal Music Publishing Group.
芝加哥风格引文O’connell, Billie, 与 Finneas O’connell. Happier Than Ever. California, United States: Universal Music Publishing Group, 2021.
MLA引文O’connell, Billie, 与 Finneas O’connell. Happier Than Ever. Universal Music Publishing Group, 2021.
警告：这些引文格式不一定是100％准确.