Cita APA (7a ed.)

Romero, P. P. (1997). Principles of speech and oral communication. Katha.

Cita Chicago Style (17a ed.)

Romero, Perlita P. Principles of Speech and Oral Communication. Quezon City: Katha, 1997.

Cita MLA (9a ed.)

Romero, Perlita P. Principles of Speech and Oral Communication. Katha, 1997.