APA
Hemingway E.,, .For whom the bell tolls. New York:NY: Charles Scribner's Sons.
Chicago
Hemingway Ernest,, .For whom the bell tolls. New York:NY: Charles Scribner's Sons.
Harvard
Hemingway E.,, .For whom the bell tolls. New York:NY: Charles Scribner's Sons.
MLA
Hemingway Ernest,, .New York:NY: Charles Scribner's Sons. .