Dyfyniad APA

McClosky, D. B., & McClosky, B. H. (1975). Voice in song and speach: A manual for healthy phonation. The Boston Music.

Dyfyniad Arddull Chicago

McClosky, David Blair, and Barbara H. McClosky. Voice in Song and Speach: A Manual for Healthy Phonation. Boston: The Boston Music, 1975.

Dyfyniad MLA

McClosky, David Blair, and Barbara H. McClosky. Voice in Song and Speach: A Manual for Healthy Phonation. The Boston Music, 1975.

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