Gaya APA

MAXFIELD, M, G., BABBIE, E. (2016). Basics of research methods for criminal justice & criminology (4th ed.). Newyork: Delmar Cengage .

Gaya MLA

MAXFIELD, Michael, G.., BABBIE, Earl. "Basics of research methods for criminal justice & criminology". 4th ed. Newyork: Delmar Cengage , 2016. Buku.