APA (7th ed.) Citation

Cullen, D., & Leslie, D. (2009). Columbine. Blackstone Audio.

Chicago Style (17th ed.) Citation

Cullen, Dave, and Don Leslie. Columbine. [Ashland, Or.]: Blackstone Audio, 2009.

MLA (8th ed.) Citation

Cullen, Dave, and Don Leslie. Columbine. Blackstone Audio, 2009.

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