Smith, C., & Sugar, S. (1979). Phonetic primers. Educators Publishing Service, Inc..
Dyfyniad Arddull ChicagoSmith, Carolyn, and Suzanne Sugar. Phonetic Primers. [Cambridge, Mass.]: Educators Publishing Service, Inc., 1979.
Dyfyniad MLASmith, Carolyn, and Suzanne Sugar. Phonetic Primers. Educators Publishing Service, Inc., 1979.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.