APA (7th ed.) Citation

Barry, W. J., & Gutknecht, C. (1970). A university course in English phonetics and a comparative study in English and German phonology. Vieweg.

Chicago Style (17th ed.) Citation

Barry, William J., and Christoph Gutknecht. A University Course in English Phonetics and a Comparative Study in English and German Phonology. Wiesbaden: Vieweg, 1970.

MLA (9th ed.) Citation

Barry, William J., and Christoph Gutknecht. A University Course in English Phonetics and a Comparative Study in English and German Phonology. Vieweg, 1970.