Dyfyniad APA
Gronbeck, B. E., Ehninger, D., & Monroe, A. H. (1988). Principles of speech communication (10th brief ed.). Scott, Foresman.
Dyfyniad Arddull Chicago
Gronbeck, Bruce E., Douglas Ehninger, and Alan Houston Monroe. Principles of Speech Communication. 10th brief ed. Glenview, Ill.: Scott, Foresman, 1988.
Dyfyniad MLA
Gronbeck, Bruce E., et al. Principles of Speech Communication. 10th brief ed. Scott, Foresman, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.