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.
Citace podle Chicago (17th ed.)Valdez, Suzette F., Rommel B. Dela Cruz, a Rosemarie D. Alejo. Essentials of Oral Communication Towards Effective and Responsible Speech. Manila: Purely Books Trading & Publishing Corp, 2013.
Citace podle MLA (9th ed.)Valdez, Suzette F., et al. Essentials of Oral Communication Towards Effective and Responsible Speech. Purely Books Trading & Publishing Corp, 2013.
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