Gaya APA
CONSTINETT, Sandra. (1994).
Spectrum 2: a communicative course in english .
Amerika:
Prentice Hall.
Gaya Chicago
CONSTINETT, Sandra.
Spectrum 2: a communicative course in english.
Amerika:
Prentice Hall,
1994.
Text.
Gaya MLA
CONSTINETT, Sandra.
Spectrum 2: a communicative course in english.
Amerika:
Prentice Hall,
1994.
Text.
Gaya Turabian
CONSTINETT, Sandra.
Spectrum 2: a communicative course in english.
Amerika:
Prentice Hall,
1994.
Print.