APA (7th ed.) Citation

Astudillo, R. M. (1977). The note-keepers. Interlude Publications.

Chicago Style (17th ed.) Citation

Astudillo, Roberto M. The Note-keepers. Baguio City: Interlude Publications, 1977.

MLA (9th ed.) Citation

Astudillo, Roberto M. The Note-keepers. Interlude Publications, 1977.