APA-viite (7. p.)
ebrary, Inc, & Harrison, A. E. (2010). Speech disorders: Causes, treatment and social effects. Nova Science Publishers, Inc..
Chicago-viite (17. p.)
ebrary, Inc, ja Alan E. Harrison. Speech Disorders: Causes, Treatment and Social Effects. Hauppauge, NY: Nova Science Publishers, Inc., 2010.
MLA-viite (9. p.)
ebrary, Inc, ja Alan E. Harrison. Speech Disorders: Causes, Treatment and Social Effects. Nova Science Publishers, Inc., 2010.
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