Gaya APA
Benton, D.A.. (2012).
The Virtual Executive .
America:
The McGraw-Hill Companies.
Gaya Chicago
Benton, D.A..
The Virtual Executive.
America:
The McGraw-Hill Companies,
2012.
Text.
Gaya MLA
Benton, D.A..
The Virtual Executive.
America:
The McGraw-Hill Companies,
2012.
Text.
Gaya Turabian
Benton, D.A..
The Virtual Executive.
America:
The McGraw-Hill Companies,
2012.
Print.