Deismireacht APA

Verderber, R., Sellnow, D. D., & Verderber, K. S. (2012). Speak. Wadsworth Cengage learning.

Chicago Edition Citation

Verderber, Rudolph, Deanna D. Sellnow, and Kathleen S. Verderber. Speak. Boston: Wadsworth Cengage learning, 2012.

Deismireacht MLA

Verderber, Rudolph, et al. Speak. Wadsworth Cengage learning, 2012.

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