APA Style

Sullivan, L, E. et al (2010). Encyclopedia of Law Enforcement = Ensiklopedia Penegak Hukum (Vol.1, 2, 3). USA: Sage Publication.

MLA Style

Sullivan, Larry, E.. et al. "Encyclopedia of Law Enforcement = Ensiklopedia Penegak Hukum". Vol.1, 2, 3 USA: Sage Publication, 2010. Text.