APA Style
Countdown to English. (1980).
Indonesia:
Elex Media Komputindo.
Chicago Style
Countdown to English.
1st edition.
Indonesia:
Elex Media Komputindo,
1980.
Text.
MLA Style
Countdown to English.
1st edition.
Indonesia:
Elex Media Komputindo,
1980.
Text.
Turabian Style
Countdown to English.
Indonesia:
Elex Media Komputindo,
1980.
Print.