Valdez, S. F., Dela Cruz, R. B., & Alejo, R. D. (2013). Essentials of oral communication towards effective and responsible speech. Purely Books Trading & Publishing Corp.
Chicago-Zitierstil (17. Ausg.)Valdez, Suzette F., Rommel B. Dela Cruz, und Rosemarie D. Alejo. Essentials of Oral Communication Towards Effective and Responsible Speech. Manila: Purely Books Trading & Publishing Corp, 2013.
MLA-Zitierstil (9. Ausg.)Valdez, Suzette F., et al. Essentials of Oral Communication Towards Effective and Responsible Speech. Purely Books Trading & Publishing Corp, 2013.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.