APA Style
WALFORD, A.J., 0. (1990).
Walfords Guide to Reference Material .
London:
The Library Association.
Chicago Style
WALFORD, A.J., 0.
Walfords Guide to Reference Material.
London:
The Library Association,
1990.
Buku.
MLA Style
WALFORD, A.J., 0.
Walfords Guide to Reference Material.
London:
The Library Association,
1990.
Buku.
Turabian Style
WALFORD, A.J., 0.
Walfords Guide to Reference Material.
London:
The Library Association,
1990.
Buku.