Johnson, C. D., & Seaton, J. B. (2012). Educational audiology handbook (2nd ed.). Delmar Cengage Learning.
Dyfyniad Arddull ChicagoJohnson, Cheryl DeConde, and Jane B. Seaton. Educational Audiology Handbook. 2nd ed. Clifton Park, NY: Delmar Cengage Learning, 2012.
Dyfyniad MLAJohnson, Cheryl DeConde, and Jane B. Seaton. Educational Audiology Handbook. 2nd ed. Delmar Cengage Learning, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.