Gregory, H., & Hamilton Gregory. (2010). Public speaking for college and career. Boston: McGraw-Hill Higher Education.
Trích dẫn kiểu ChicagoGregory, Hamilton, và Hamilton Gregory. Public Speaking for College and Career. Boston: McGraw-Hill Higher Education, 2010.
Deismireacht MLAGregory, Hamilton, và Hamilton Gregory. Public Speaking for College and Career. Boston: McGraw-Hill Higher Education, 2010.
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