Hahner, J. C. (2002). Speech Lab CD to accompany: Speaking clearly. New York: McGraw-Hill.
Stile di citazione ChicagoHahner, Jeffrey C. Speech Lab CD to Accompany: Speaking Clearly. New York: McGraw-Hill, 2002.
Citazione MLAHahner, Jeffrey C. Speech Lab CD to Accompany: Speaking Clearly. New York: McGraw-Hill, 2002.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.