APA (7e ed.) Bronvermelding

Romualdez, N. (1932). Filipino musical instruments and airs of long ago. Catholic Trade School].

Chicago (17e ed.) Bronvermelding

Romualdez, Norberto. Filipino Musical Instruments and Airs of Long Ago. [Manila: Catholic Trade School], 1932.

MLA (9e ed.) Bronvermelding

Romualdez, Norberto. Filipino Musical Instruments and Airs of Long Ago. Catholic Trade School], 1932.