Gaya APA
GUFFEY, mary ellen. (2002).
Business English, 7th ed (7th.ed).
Cincinnati, Ohio:
South Westrn.
Gaya Chicago
GUFFEY, mary ellen.
Business English, 7th ed.
7th.ed
Cincinnati, Ohio:
South Westrn,
2002.
Monograf.
Gaya MLA
GUFFEY, mary ellen.
Business English, 7th ed.
7th.ed
Cincinnati, Ohio:
South Westrn,
2002.
Monograf.
Gaya Turabian
GUFFEY, mary ellen.
Business English, 7th ed.
7th.ed
Cincinnati, Ohio:
South Westrn,
2002.
Monograf.