APA Style
Guffey, Mary Ellen. (1983).
Business English .
Massachusetts:
KENT PUBLISHING.
Chicago Style
Guffey, Mary Ellen.
Business English.
Massachusetts:
KENT PUBLISHING,
1983.
.
MLA Style
Guffey, Mary Ellen.
Business English.
Massachusetts:
KENT PUBLISHING,
1983.
.
Turabian Style
Guffey, Mary Ellen.
Business English.
Massachusetts:
KENT PUBLISHING,
1983.
.