APA-referens (7:e uppl.)

Gutierrez, K. P. T. (1996). Graduation Recital (voice). UP College of Music.

Chicago-referens (17:e uppl.)

Gutierrez, Karla Patricia T. Graduation Recital (voice). Quezon, City: UP College of Music, 1996.

MLA-referens (9:e uppl.)

Gutierrez, Karla Patricia T. Graduation Recital (voice). UP College of Music, 1996.