John R Boyd. Connections communicative listening and speaking activities. New York: Regents.
Citação norma ChicagoJohn R Boyd. Connections Communicative Listening and Speaking Activities. New York: Regents.
Citação norma MLAJohn R Boyd. Connections Communicative Listening and Speaking Activities. New York: Regents.
Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.