Bonin, C. (2021). Belting: Belt voice training fur die singstimme. Books On Demand.
芝加哥风格引文Bonin, Christin. Belting: Belt Voice Training Fur Die Singstimme. [S. l.]: Books On Demand, 2021.
MLA引文Bonin, Christin. Belting: Belt Voice Training Fur Die Singstimme. Books On Demand, 2021.
警告：这些引文格式不一定是100％准确.