Cruz-Tapalla, Wilma. Public speaking and professional etiquette / Wilma Cruz-Tappalla, Valerie Cruz Tapalla. - Mandaluyong City : Anvil Publishing, c2010. - 183 p. : ill. ; 23 cm. ISBN: 9789712724527 Subjects--Topical Terms: Public speaking.Etiquette. LC Class. No.: PN4121 / .C782 2010