Citazione APA

Gregory, H., & Hamilton Gregory. (2010). Public speaking for college and career. Boston: McGraw-Hill Higher Education.

Stile di citazione Chicago

Gregory, Hamilton, e Hamilton Gregory. Public Speaking for College and Career. Boston: McGraw-Hill Higher Education, 2010.

Citazione MLA

Gregory, Hamilton, e Hamilton Gregory. Public Speaking for College and Career. Boston: McGraw-Hill Higher Education, 2010.

Attenzione: Queste citazioni potrebbero non essere precise al 100%.