APA (7th ed.) Citation

Henry, O. (1907). Heart of the West: By O. Henry [pseud.].. The McClure company.

Chicago Style (17th ed.) Citation

Henry, O. Heart of the West: By O. Henry [pseud.].. New York: The McClure company, 1907.

MLA (9th ed.) Citation

Henry, O. Heart of the West: By O. Henry [pseud.].. The McClure company, 1907.