Gaya APA
Baron, David P. (2006).
Business and its environment (5e).
New Jersey:
Prentice Hall.
Gaya Chicago
Baron, David P.
Business and its environment.
5e
New Jersey:
Prentice Hall,
2006.
Buku.
Gaya MLA
Baron, David P.
Business and its environment.
5e
New Jersey:
Prentice Hall,
2006.
Buku.
Gaya Turabian
Baron, David P.
Business and its environment.
5e
New Jersey:
Prentice Hall,
2006.
Buku.