Silverman, F. H. (1998). Research design and evaluation in speech-language pathology and audiology (4th edition.). Allyn and Bacon.
Chicago-referens (17:e uppl.)Silverman, Franklin H. Research Design and Evaluation in Speech-language Pathology and Audiology. 4th edition. Boston: Allyn and Bacon, 1998.
MLA-referens (9:e uppl.)Silverman, Franklin H. Research Design and Evaluation in Speech-language Pathology and Audiology. 4th edition. Allyn and Bacon, 1998.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.