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Some principles of public speaking

a textbook on the preparation and conduct of lectures, creative meetings, book presentations

Pronunciation
/səm ˈprɪnsɪpəlz əv ˈpʌblɪk ˈspiːkɪŋ/
/səm ˈprɪnsəpəlz əv ˈpəblɪk ˈspikɪŋ/
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