Dyfyniad APA

Vinson, B. P. (2007). Language disorders across the lifespan (2nd ed.). Thomson/Delmar Learning.

Dyfyniad Arddull Chicago

Vinson, Betsy Partin. Language Disorders Across the Lifespan. 2nd ed. Clifton Park, N.Y: Thomson/Delmar Learning, 2007.

Dyfyniad MLA

Vinson, Betsy Partin. Language Disorders Across the Lifespan. 2nd ed. Thomson/Delmar Learning, 2007.

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