APA-Zitierstil (7. Ausg.)

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

Chicago-Zitierstil (17. Ausg.)

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

MLA-Zitierstil (9. Ausg.)

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