Dyfyniad APA
Hunt, T., & Grunig, J. E. (1994). Public relations techniques. Harcourt Brace College.
Dyfyniad Arddull Chicago
Hunt, Todd, and James E. Grunig. Public Relations Techniques. Fort Worth: Harcourt Brace College, 1994.
Dyfyniad MLA
Hunt, Todd, and James E. Grunig. Public Relations Techniques. Harcourt Brace College, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.