Gaya APA
Teaching language as communication. (1978).
London:
Oxford University Pres.
Gaya Chicago
Teaching language as communication.
.
London:
Oxford University Pres,
1978.
Buku.
Gaya MLA
Teaching language as communication.
.
London:
Oxford University Pres,
1978.
Buku.
Gaya Turabian
Teaching language as communication.
London:
Oxford University Pres,
1978.
Buku.