Gaya APA
Rein, David P., Byrd, Donald R.H., Goldblatt, Deborah. (1986).
Spectrum workbook 6 : a communicative course in English .
New York:
Regent.
Gaya Chicago
Rein, David P., Byrd, Donald R.H., Goldblatt, Deborah.
Spectrum workbook 6 : a communicative course in English.
New York:
Regent,
1986.
Text.
Gaya MLA
Rein, David P., Byrd, Donald R.H., Goldblatt, Deborah.
Spectrum workbook 6 : a communicative course in English.
New York:
Regent,
1986.
Text.
Gaya Turabian
Rein, David P., Byrd, Donald R.H., Goldblatt, Deborah.
Spectrum workbook 6 : a communicative course in English.
New York:
Regent,
1986.
Print.