Clinical research methods in speech-language pathology and audiologyDavid L., Ph.D. Irwin, Mary Pannbacker, Norman J. Lass · First published 2007Open the Tome
Handbook of speech-language, pathology, and audiologyNorman J. Lass · First published 1988Open the Tome
Speech, Language, and Hearing. Volume IIINorman J. Lass & Leija V. McReynolds · First published 1982Open the Tome