Hal Leonard. (2017). Real Vocal Book: Low Voice- Vol. 1. Hal Leonard.
芝加哥风格引文Hal Leonard. Real Vocal Book: Low Voice- Vol. 1. Hal Leonard, 2017.
MLA引文Hal Leonard. Real Vocal Book: Low Voice- Vol. 1. Hal Leonard, 2017.
警告：这些引文格式不一定是100％准确.
APA引文