Gaya APA
Bruder, B, T, &, M, N.
(2013).
Speaking Naturally
(
Cetakan Pertama)
.
London:
Cambridge University Press.
Gaya MLA
Bruder, Bruce, Tillitt, &, Mary, Newton.
"Speaking Naturally".
Cetakan Pertama
London:
Cambridge University Press,
2013.
Text.