Dyfyniad APA

O'Hair, D. (2019). A pocket guide to public speaking. Boston: Bedford/​St. Martin's.

Dyfyniad Arddull Chicago

O'Hair, Dan. A Pocket Guide to Public Speaking. Boston: Bedford/​St. Martin's, 2019.

Dyfyniad MLA

O'Hair, Dan. A Pocket Guide to Public Speaking. Boston: Bedford/​St. Martin's, 2019.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.