Gaya APA
GUFFEY, Mary Ellen. (2004).
ESSENTIALS OF BUSINESS COMMUNICATION (6).
:
.
Gaya Chicago
GUFFEY, Mary Ellen.
ESSENTIALS OF BUSINESS COMMUNICATION.
6
:
,
2004.
Text.
Gaya MLA
GUFFEY, Mary Ellen.
ESSENTIALS OF BUSINESS COMMUNICATION.
6
:
,
2004.
Text.
Gaya Turabian
GUFFEY, Mary Ellen.
ESSENTIALS OF BUSINESS COMMUNICATION.
6
:
,
2004.
Print.