APA Style
CICI Directory of Information Products and Services. (1991).
London:
Longman.
Chicago Style
CICI Directory of Information Products and Services.
.
London:
Longman,
1991.
Text.
MLA Style
CICI Directory of Information Products and Services.
.
London:
Longman,
1991.
Text.
Turabian Style
CICI Directory of Information Products and Services.
London:
Longman,
1991.
Print.