Gregory, H. (2010). Public speaking for college and career (9th ed.). Boston: McGraw-Hill Higher Education.
استشهاد بنمط شيكاغوGregory, Hamilton. Public Speaking for College and Career. 9th ed. Boston: McGraw-Hill Higher Education, 2010.
MLA استشهادGregory, Hamilton. Public Speaking for College and Career. 9th ed. Boston: McGraw-Hill Higher Education, 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.