Barham, T. J., & Nelson, D. L. (1991). The boy's changing voice: New solutions for today's choral teacher. Belwin Mills.
芝加哥风格引文Barham, Terry Joe, 与 Darolyne L. Nelson. The Boy's Changing Voice: New Solutions for Today's Choral Teacher. Miami, Fl.: Belwin Mills, 1991.
MLA引文Barham, Terry Joe, 与 Darolyne L. Nelson. The Boy's Changing Voice: New Solutions for Today's Choral Teacher. Belwin Mills, 1991.
警告：这些引文格式不一定是100％准确.