APA (7th ed.) Citation
Botha, E. C. (2013). An acoustic comparison of the vowels and diphthongs of first-language and African- mother-tongue South African English. University of Pretoria.
Chicago Style (17th ed.) Citation
Botha, Elizabeth C. An Acoustic Comparison of the Vowels and Diphthongs of First-language and African- Mother-tongue South African English. University of Pretoria, 2013.
MLA (9th ed.) Citation
Botha, Elizabeth C. An Acoustic Comparison of the Vowels and Diphthongs of First-language and African- Mother-tongue South African English. University of Pretoria, 2013.
Warning: These citations may not always be 100% accurate.