Citazione Stile APA (7a Edizione)

Villamarzo, P. C., Cruz, E. E., & Relis, J. G. (2003). Functional oral communication (Rev. ed.). University of Santo Tomas Pub. House.

Citazione stile Chigago Style (17a edizione)

Villamarzo, Perla C., Estrella E. Cruz, e Josephine G. Relis. Functional Oral Communication. Rev. ed. Manila: University of Santo Tomas Pub. House, 2003.

Citatione MLA (9a ed.)

Villamarzo, Perla C., et al. Functional Oral Communication. Rev. ed. University of Santo Tomas Pub. House, 2003.