Cita APA (7th ed.)

Cortez, F. M., & Castro, H. O. (2016). The art of effective oral communication. Book ATBP Publishing Corp.

Cita Chicago (17th ed.)

Cortez, Felicitas M., i Herminia O. Castro. The Art of Effective Oral Communication. Mandaluyong City: Book ATBP Publishing Corp, 2016.

Cita MLA (9th ed.)

Cortez, Felicitas M., i Herminia O. Castro. The Art of Effective Oral Communication. Book ATBP Publishing Corp, 2016.