APA (7th ed.) Citation

Howard, R. E., Keegan, J., & Keegan, R. (2007). The best of Robert E. Howard. Ballantine Books Del Rey.

Chicago Style (17th ed.) Citation

Howard, Robert E., Jim Keegan, and Ruth Keegan. The Best of Robert E. Howard. New York: Ballantine Books Del Rey, 2007.

MLA (8th ed.) Citation

Howard, Robert E., et al. The Best of Robert E. Howard. Ballantine Books Del Rey, 2007.

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