Benward, B. (1992). Introduction to sightsinging and ear training (2nd ed.). Wm. C. Brown Communications.
芝加哥风格引文Benward, Bruce. Introduction to Sightsinging and Ear Training. 2nd ed. Dubuque, Iowa: Wm. C. Brown Communications, 1992.
MLA引文Benward, Bruce. Introduction to Sightsinging and Ear Training. 2nd ed. Wm. C. Brown Communications, 1992.
警告：这些引文格式不一定是100％准确.