APA Style
Spectrum Workbook VI : a communicative course in E. (1986).
Indonesia:
Elex Media Komputindo.
Chicago Style
Spectrum Workbook VI : a communicative course in E.
1st edition.
Indonesia:
Elex Media Komputindo,
1986.
Text.
MLA Style
Spectrum Workbook VI : a communicative course in E.
1st edition.
Indonesia:
Elex Media Komputindo,
1986.
Text.
Turabian Style
Spectrum Workbook VI : a communicative course in E.
Indonesia:
Elex Media Komputindo,
1986.
Print.