Espino, A. (2002). Kundiman ng langit: For high voice and piano. s.n.].
Cita Chicago (17th ed.)Espino, Augusto. Kundiman Ng Langit: For High Voice and Piano. [S.l: s.n.], 2002.
Cita MLA (9th ed.)Espino, Augusto. Kundiman Ng Langit: For High Voice and Piano. s.n.], 2002.
Atenció: Aquestes cites poden no estar 100% correctes.