Gaya APA
Williams, Hank. (1994).
The Essence of managing people .
New York:
Prentice Hall.
Gaya Chicago
Williams, Hank.
The Essence of managing people.
New York:
Prentice Hall,
1994.
Buku.
Gaya MLA
Williams, Hank.
The Essence of managing people.
New York:
Prentice Hall,
1994.
Buku.
Gaya Turabian
Williams, Hank.
The Essence of managing people.
New York:
Prentice Hall,
1994.
Buku.