APA

Cornwell P. D., . (1999). Point of origin. New York: Berkley Books.

Chicago

Cornwell Patricia Daniels, . 1999. Point of origin. New York: Berkley Books.

Harvard

Cornwell P. D., . (1999). Point of origin. New York: Berkley Books.

MLA

Cornwell Patricia Daniels, . Point of origin. New York: Berkley Books. 1999.