APA

Hemingway Ernest, . (1968). For whom the bell tolls. New York: C. Scribner's Sons.

Chicago

Hemingway Ernest, . 1968. For whom the bell tolls. New York: C. Scribner's Sons.

Harvard

Hemingway Ernest, . (1968). For whom the bell tolls. New York: C. Scribner's Sons.

MLA

Hemingway Ernest, . For whom the bell tolls. New York: C. Scribner's Sons. 1968.