APA

Johnson E. S., . (1981). Research Methods In Criminology And Criminal Justice. New Jersy: Prentice-Hall, Inc.

Chicago

Johnson Edwin S, . 1981. Research Methods In Criminology And Criminal Justice. New Jersy: Prentice-Hall, Inc.

Harvard

Johnson E. S., . (1981). Research Methods In Criminology And Criminal Justice. New Jersy: Prentice-Hall, Inc.

MLA

Johnson Edwin S, . Research Methods In Criminology And Criminal Justice. New Jersy: Prentice-Hall, Inc. 1981.