APA Style
Business English and English Comercial Coresponden. (1980).
Indonesia:
Elex Media Komputindo.
Chicago Style
Business English and English Comercial Coresponden.
1st edition.
Indonesia:
Elex Media Komputindo,
1980.
Text.
MLA Style
Business English and English Comercial Coresponden.
1st edition.
Indonesia:
Elex Media Komputindo,
1980.
Text.
Turabian Style
Business English and English Comercial Coresponden.
Indonesia:
Elex Media Komputindo,
1980.
Print.