Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.