APA Style
Spectrum Workbook IV : a comminicative course in E. (1985).
Indonesia:
Elex Media Komputindo.
Chicago Style
Spectrum Workbook IV : a comminicative course in E.
1st edition.
Indonesia:
Elex Media Komputindo,
1985.
Text.
MLA Style
Spectrum Workbook IV : a comminicative course in E.
1st edition.
Indonesia:
Elex Media Komputindo,
1985.
Text.
Turabian Style
Spectrum Workbook IV : a comminicative course in E.
Indonesia:
Elex Media Komputindo,
1985.
Print.