Dyfyniad APA

Ross, R. S. (1977). Speech communication: Fundamentals and practice (4th ed.). Prentice-Hall.

Dyfyniad Arddull Chicago

Ross, Raymond S. Speech Communication: Fundamentals and Practice. 4th ed. Englewood Cliffs: Prentice-Hall, 1977.

Dyfyniad MLA

Ross, Raymond S. Speech Communication: Fundamentals and Practice. 4th ed. Prentice-Hall, 1977.

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