Vowel systems and X-ray photography
Subtitle: an assessment of the Cardinal Vowel Chart
By: by E.O.J. Westphal
Series: Communications from the School of African Studies, University of Cape Town,; no. 36
Publisher: School of African Studies and University of Cape Town Libraries
Published: 1971
Place of publication: [Cape Town]
Language: eng
Number of pages: 32
Subjects: Speech -- Physiological aspects.; Vowels.; Mouth -- Radiography.