Enriquez, E. D. (1997). Recital I (voice). UP College of Music.
Chicagoスタイル(17版)引用形式Enriquez, Estrellita David. Recital I (voice). Quezon City: UP College of Music, 1997.
MLA(9版)引用形式Enriquez, Estrellita David. Recital I (voice). UP College of Music, 1997.
警告: この引用は必ずしも正確ではありません.