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.