Enriquez, E. D. (1997). Recital I (voice). UP College of Music.
芝加哥风格引文Enriquez, Estrellita David. Recital I (voice). Quezon City: UP College of Music, 1997.
MLA引文Enriquez, Estrellita David. Recital I (voice). UP College of Music, 1997.
警告：这些引文格式不一定是100％准确.