Citazione Stile APA (7a Edizione)

Azarcon, C. B., & Belda-Azarcon, C. (1964). Piano pieces for the early grades. s.n.

Citazione stile Chigago Style (17a edizione)

Azarcon, Constancia Belda, e Constancia Belda-Azarcon. Piano Pieces for the Early Grades. [Manila: s.n, 1964.

Citatione MLA (9a ed.)

Azarcon, Constancia Belda, e Constancia Belda-Azarcon. Piano Pieces for the Early Grades. s.n, 1964.