APA
(1976). My Speech Therapy Workbook "Ch" Sound. Austin: pro-ed.
Chicago
1976. My Speech Therapy Workbook "Ch" Sound. Austin: pro-ed.
Harvard
(1976). My Speech Therapy Workbook "Ch" Sound. Austin: pro-ed.
MLA
My Speech Therapy Workbook "Ch" Sound. Austin: pro-ed. 1976.
