Lorse, B., & Bonelli, A. (2016). Warm-ups before singing: The handbook : 150 warm-ups for choirs and soloists. Fidelio-Verlag.
芝加哥风格引文Lorse, Benedikt, 与 Anna Bonelli. Warm-ups Before Singing: The Handbook : 150 Warm-ups for Choirs and Soloists. Gerolstein: Fidelio-Verlag, 2016.
MLA引文Lorse, Benedikt, 与 Anna Bonelli. Warm-ups Before Singing: The Handbook : 150 Warm-ups for Choirs and Soloists. Fidelio-Verlag, 2016.
警告：这些引文格式不一定是100％准确.