Tohutoro APA (7th ed.)
Curlee, R. F., & Perkins, W. H. (1984). Nature and treatment of stuttering: New directions. College-Hill Press.
Tohutoru Kātū Chicago (17th ed.)
Curlee, Richard F., me William H. Perkins. Nature and Treatment of Stuttering: New Directions. San Diego, CA.: College-Hill Press, 1984.
Tohutoro MLA (9th ed.)
Curlee, Richard F., me William H. Perkins. Nature and Treatment of Stuttering: New Directions. College-Hill Press, 1984.
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