Gregory, H. (2005). Puplic speaking for college & career. Boston: McGraw-Hill.
शिकागो स्टाइल उद्धरणGregory, Hamilton. Puplic Speaking for College & Career. Boston: McGraw-Hill, 2005.
एमएलए उद्धरणGregory, Hamilton. Puplic Speaking for College & Career. Boston: McGraw-Hill, 2005.
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