APA (7th ed.) Citation

Lucas, Gall, & Kratcoski. (1996). Statistics on weapons & violence. Gale Research.

Chicago Style (17th ed.) Citation

Lucas, Gall, and Kratcoski. Statistics on Weapons & Violence. Detroit: Gale Research, 1996.

MLA (8th ed.) Citation

Lucas, et al. Statistics on Weapons & Violence. Gale Research, 1996.