APA (7th ed.) Citation

L'Amour, L. (1971). Down the long hills (New ed.). Bantam Books.

Chicago Style (17th ed.) Citation

L'Amour, Louis. Down the Long Hills. New ed. New York: Bantam Books, 1971.

MLA (9th ed.) Citation

L'Amour, Louis. Down the Long Hills. New ed. Bantam Books, 1971.