APA

Cussler C., . (2001). Valhalla rising. New York: Berkley Books.

Chicago

Cussler Clive, . 2001. Valhalla rising. New York: Berkley Books.

Harvard

Cussler C., . (2001). Valhalla rising. New York: Berkley Books.

MLA

Cussler Clive, . Valhalla rising. New York: Berkley Books. 2001.