APA (7th ed.) Citation

Alter, R. E. (1975). The trail of Billy the Kid. Belmont Tower Books.

Chicago Style (17th ed.) Citation

Alter, Robert Edmond. The Trail of Billy the Kid. New York: Belmont Tower Books, 1975.

MLA (9th ed.) Citation

Alter, Robert Edmond. The Trail of Billy the Kid. Belmont Tower Books, 1975.

Warning: These citations may not always be 100% accurate.