Gaya APA
Walker, Samuel. (1992).
The police in America : an introduction (2e).
New York, NY:
McGraw-Hill.
Gaya Chicago
Walker, Samuel.
The police in America : an introduction.
2e
New York, NY:
McGraw-Hill,
1992.
Buku.
Gaya MLA
Walker, Samuel.
The police in America : an introduction.
2e
New York, NY:
McGraw-Hill,
1992.
Buku.
Gaya Turabian
Walker, Samuel.
The police in America : an introduction.
2e
New York, NY:
McGraw-Hill,
1992.
Buku.