Gaya APA
Warshawsky, Diane, Byrd, Donald R.H. (1993).
Spectrum 1: A Communicative Course in English .
New Jersey:
Prentice Hall Regents.
Gaya Chicago
Warshawsky, Diane, Byrd, Donald R.H.
Spectrum 1: A Communicative Course in English.
New Jersey:
Prentice Hall Regents,
1993.
.
Gaya MLA
Warshawsky, Diane, Byrd, Donald R.H.
Spectrum 1: A Communicative Course in English.
New Jersey:
Prentice Hall Regents,
1993.
.
Gaya Turabian
Warshawsky, Diane, Byrd, Donald R.H.
Spectrum 1: A Communicative Course in English.
New Jersey:
Prentice Hall Regents,
1993.
.