APA Style
Costinett, Sandra, Byrd, Donald R H. (1994).
Spectrum 6 : A Communicative Course In English .
Englewood Cliffs:
Prentice Hall Regents.
Chicago Style
Costinett, Sandra, Byrd, Donald R H.
Spectrum 6 : A Communicative Course In English.
Englewood Cliffs:
Prentice Hall Regents,
1994.
Text.
MLA Style
Costinett, Sandra, Byrd, Donald R H.
Spectrum 6 : A Communicative Course In English.
Englewood Cliffs:
Prentice Hall Regents,
1994.
Text.
Turabian Style
Costinett, Sandra, Byrd, Donald R H.
Spectrum 6 : A Communicative Course In English.
Englewood Cliffs:
Prentice Hall Regents,
1994.
Print.