Kasilag, L. R. (1950). Theme and variations: Based on a Filipino folk tune 'walay angay'. s.n.
Cita Chicago (17th ed.)Kasilag, Lucresia R. Theme and Variations: Based on a Filipino Folk Tune 'Walay Angay'. [S.l: s.n, 1950.
Cita MLA (9th ed.)Kasilag, Lucresia R. Theme and Variations: Based on a Filipino Folk Tune 'Walay Angay'. s.n, 1950.
Atenció: Aquestes cites poden no estar 100% correctes.