APA (7th ed.) Citation

Clancy. (1991). The Sum of all fears. Harper Collins Publisher.

Chicago Style (17th ed.) Citation

Clancy. The Sum of All Fears. London: Harper Collins Publisher, 1991.

MLA (9th ed.) Citation

Clancy. The Sum of All Fears. Harper Collins Publisher, 1991.

Warning: These citations may not always be 100% accurate.